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Max Tennyson

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Maxwell Tennyson

Max standing official artwork

Max AF

Ben10-clipart 11

General Information
Species Human
½ Human ½ Lepidopterran (temporarily)
Home World Earth
Residence Bellwood
Null Void (temporarily)
Age 10 (Don't Drink the Water)
17 (Moonstruck)
59-60 (Ben 10)
60-61 (Omniverse flashbacks)
64-65 (Alien Force)
65-66 (Ultimate Alien and Omniverse)
Affiliations Plumbers
Ben's Team
DNA Force
The Air Force (formerly)
NASA (formerly)
Area 51 (formerly)
Occupation(s) Plumber
Astronaut (formerly)
Magister of Earth
Air Force Lieutenant (formerly)
Powers and Abilities
Abilities Advanced Technology and Alien knowledge
Plumber Training
Military Training
Equipment Plumber Suit and Weapons
Relatives Verdona (estranged partner)
Bill Tennyson (father)
Ashley Ethelridge (mother)
Benjamin Tennyson (grandfather)
Jedediah (uncle)
Gordon Tennyson (older brother)
Vera Tennyson (older sister)
Joel Tennyson (nephew)
Carl Tennyson (son)
Frank Tennyson (son)
Sandra Tennyson (daughter-in-law)
Natalie Tennyson (daughter-in-law)
Kenneth Tennyson (grandson)
Ben Tennyson (grandson)
Gwen Tennyson (granddaughter)
Clyde Fife (nephew)
Alias Maxy
The Wrench (formerly)
Magister Max Tennyson
Old Man (Ultimate Kevin)
Grandpa Max (Gwen)
Grandpa (Ben)
Sweet Man (Verdona)
Legendary Plumber
Magister Tennyson (Rook)
Colorful Shirt Man (Pakmar)
Partner (Phil)
Maxy Waxy (Vera Tennyson)
Alternate Counterparts Max Tennyson (Future)
Max Tennyson (RAT Timeline)
Max Tennyson (No Watch Timeline)
Voice Actor Paul Eiding (adult)
Adam Wylie (10 year old)
Jason Marsden (17 year old)
Actor Barry Corbin (Alien Swarm)
First Appearance And Then There Were 10

Magister Maxwell "Max" Tennyson or Grandpa Max as his grandchildren call him, is the paternal grandfather of Ben, Gwen, and Ken, as well as the father of Carl Tennyson and Frank Tennyson. He is a fairly overweight man in his late 50's, with a keen sense for adventure and a strange taste in food. Max ends up taking the kids on a summer vacations' road trip across the United States. Much to Ben's annoyance, Ben discovers that Gwen is joining them. Max travels in a motor home nicknamed the Rust Bucket, which he has modified with advanced technology.

Max is a semi-retired legendary Magister rank Plumber and is the mentor of Ben, Gwen, Kevin, and the Plumbers' Helpers. According to Azmuth, Max is widely considered the greatest Plumber in the Milky Way Galaxy. Max is currently Magister of Earth.


In the original series, Max wears a white shirt, covered by a red button up Hawaiian shirt with a floral design. He has grey hair and blue pants, as well as black shoes.

As Ultra Grandpa in Perfect Day, he has a stereotypical superhero costume. He wears frameless blue goggles, a cyan shirt and white pants. He also dons a white cape like Ultra Ben.

In Alien Force and Ultimate Alien, Max's appearance did not change except for his blue pants being changed to brown, he has more wrinkles, a slightly darker shirt, and whiter hair.

In Alien Swarm, Max wears a blue Hawaiian shirt instead of a red one.

In Omniverse, Max's appearance has not changed that much except for his brown pants, which are now white. He has whiter hair, more wrinkles, and his eyes have been changed to little black dashes. His white shirt that he wore under his red button up shirt has changed to black. Also, his shoes are now grey at the top and black at the bottom.



Not many details are provided on Max's childhood and background. In Permanent Retirement, Max's older sister, Vera Tennyson is introduced; she is seen as having her own weird taste in food, and is hinted as having knowledge that aliens are real. In Big Fat Alien Wedding, Max's older brother, Gordon Tennyson is introduced; in the events of the episode Gordon is also a Plumber, still on active duty, as is his wife, Betty Jean Tennyson, and their son, Joel Tennyson.

A ten-year-old version of Max was seen in the episode Don't Drink the Water.

In Under Wraps, Max mentions having spent his childhood summers on his Uncle Jedediah's farm, where he learned about the merits of hard work.

In Last Laugh, a "not-quite-all-there" Max, under the effects of Zombozo's happiness-draining, mentions having been afraid of heights as a kid and then, when "enough was enough", Max "climbed up to the top of the water tower" and "scared the fear" right out of him.

In They Lurk Below, it was shown that Max had a childhood friend called Donovan GrandSmith, who sums Max up as; "growing up he always was the worrywart...never the risk-taker", like himself. 30 years earlier, Donovan and Max had both been broke when Donovan offered Max a business opportunity, which he turned down. Max later became a Plumber (most people thought Max was just a regular plumber), establishing that Max's career as a Plumber lasted for about 28 years before he retired (Max mentioned that after 28 years on the job, he'd never figured out who was behind the Bermuda Triangle).

In the episode The Return, it was revealed that Max had been an astronaut and would have been the first man on the moon, but left the program before the Apollo Moon mission. In his own words, Max said he just 'took his step for mankind in other ways'. It is later revealed that he did in fact go into space, just not with NASA.

It is unknown if Max's strange taste in food was acquired from his adventures to other planets during his career as a Plumber, or if its root can be found in his childhood.

It was revealed in Moonstruck that Max met Verdona when she was held captive by a Synthroid (a species of robotic aliens) that wants to use her Anodite powers as fuel for their planet. Max saved Verdona and Magister Labrid, the latter of whom recruited him as a Plumber.

Ben 10

Grandpa Max is a Plumber, who takes his grandchildren Ben and Gwen on a cross-country trip, during which Ben discovers an alien watch, the Omnitrix. His grandson uses the watch to become the superhero "Ben 10". Max helps his grandson fight bad guys and aliens, and he also teaches Ben to use the watch responsibly.

During their adventures, Gwen and Ben question Max's uncanny knowledge, and the fact he doesn't seem to be bothered by all the weirdness they encounter. It is eventually revealed that Max and the alien warlord Vilgax are old enemies.

In the episode Truth, Max reveals he is part of an intergalactic police force known as the Plumbers, and that he fought and defeated Vilgax years before. During the episode he meets his old partner Phil Billings. He discovers Phil stole the Null Void Projector, using it to make easy money, by freeing the aliens who the Plumbers had already captured, then fighting and catching them for profit.

In the episode Perfect Day, Max was given superpowers by Ultra Ben in Ben's dream. As Ultra Grandpa he had enhanced strength and was able to fly.

In the episode The Visitor, it is revealed the Omnitrix was originally sent to Max by the alien Xylene (who was Max's old flame) and accidentally ended up in the possession of his grandson, Ben.

Alien Force

In Ben 10: Alien Force, Max looks mostly the same, save for more wrinkles and a darker red shirt with whiter hair. In the episode Ben 10 Returns, he leaves a transmission for Ben, stating that he is investigating renewed alien activity on Earth and claims that he has the Omnitrix. An image of a DNAlien flickers at the end of the transmission. It is conceivable from this, that Max was wearing an ID-Mask and that the DNAlien in the teaser was actually Max (the voice of the DNAlien is confirmed as Paul Eiding), implicating himself as a mole to distract the Highbreed from Ben (whom, with the Omnitrix, poses a greater threat). The message was probably in code, telling Ben to put on the Omnitrix once more. An earlier theory suggested that the hologram might have been that of a DNAlien who wanted to keep Ben out of their business, but instead made a big mistake.

In the episode Max Out, Max destroys a Xenocyte hatchery by detonating a Null Void Projector, which after removing its focusing lens, makes a "pretty good imitation of a hand grenade" and produces an explosion that covers over half a mile wide. Max appeared to have been killed in the blast, but was instead sent to the Null Void (episode: Voided), where he, calling himself "The Wrench", fought Dr. Animo, who was calling himself "D'Void". He has since appeared in the two-part episode War of the Worlds to aid Ben in his battle with the Highbreed, along with the "Plumber Helpers". At the end, he takes on the Plumber kids who fought with Ben as his apprentices. He and the Plumber kids also appear in the two-part episode Vengeance of Vilgax.

In the episode If All Else Fails, it is revealed that the Highbreed had infected him with a dormant seed, which was part of a failsafe plan of the Highbreed. It is mistakenly activated by a Highbreed officer, who was unaware that the Highbreed has called-off the war. Max is freed from the seeds' control by Ben, Gwen, and Kevin. Also during the episode, he mentions he knew Kevin's father, Devin Levin.

In Above and Beyond, it is revealed by Pierce that Max is now the Earth's Magister (an equivalent to 'Colonel', likely assigned as Earth's Magister after the Highbreed conflict, during which the former Magister Labrid was killed). In the episode, Max set up a scenario in which Ben was to go on a rampage on board an orbiting Plumbers' space station. He then calls the Plumbers' Helpers to come and save him. They manage to defeat Ben, but the battle had caused the space station to fall out of orbit towards the city of London. The Plumbers' Helpers decide to activate the station's self-destruct, which would mean sacrificing their lives in the process. However, the space station doesn't explode. Instead, Max appears along with Ben, who reveals to the Plumbers' Helpers that the space station is a Plumber training facility and that Ben's "rampage" was set up to test them. Max also states that by putting "the safety of others ahead of their own lives", the Helpers will be admitted to Plumbers' Academy.

In the season finale, The Final Battle, Max takes part in the fight against Vilgax. When Kevin returns to his human form, Max states that the Omnitrix kept him in his mutated form. Max aids Gwen in trying to stop the ship from crashing into Bellwood. After Ben escapes from Vilgax, he, Gwen, and Kevin share a group hug with Max.

Ultimate Alien

Max has grown to his full potential and is now wiser than in any other series. Since Alien Force, he's been trying to be protective around Ben, Gwen, and Kevin. He makes his first reappearance in the episode Hit 'Em Where They Live, it is revealed that Max has been protecting Ben's parents from being attacked by Ben's old enemies (due to Ben's secret being revealed to the universe). However he is injured while protecting Sandra from Sevenseven and is forced to inform Ben and his team of the problem.


Max healing on Galvan

Max appeared again in Ultimate Aggregor and Map of Infinity, where he helps Ben, Gwen, and Kevin stop Aggregor. However, in the beginning of Map of Infinity, Ultimate Aggregor's electrical shock damaged his entire nervous system, and must be replaced. Azmuth brings him, along with Ben and his team to Galvan Mark II, where Max is placed in a tube that would repair his nervous system after a few weeks. Max returns in Absolute Power with his Magister's suit, his nervous system having been fully restored and helps Ben and Gwen in the battle to stop Ultimate Kevin.

Grandpa Max returns in Moonstruck, where he reveals his past where he first met Verdona to Ben, Gwen, and Kevin (who sleeps after hearing the story). When he was about Kevin's age (16 or 17), he was a pilot in the air force. During a mission, he saw and followed a space ship. He blasted it, but the space ship got away and Max's plane crashed. He talked to the commander about the space ship, which made him an astronaut and gave him a mission to be the first man on the moon. While at a saloon, he met Verdona in her human form and fell in love with her. Suddenly, a giant human robot came and attacked Verdona. Max saved her and left to a far away desert where the robot couldn't find them. Verdona explained to Max that she is not from Earth, she is from another planet. The robot that chased them was a sentient robot called a Synthroid and it left a bracelet on Verdona's hand, which made her unable to do most her powers, save for her telepathy. She revealed to Max that she was the one in the spaceship he saw before she read Max's mind. She told him that their minds are now linked. She also revealed that the Synthroid wants her to be a battery-like energy source for their planet (since she is an energy being). The Synthroid came back and kidnapped Verdona, but Max used his mind to locate Verdona (since Verdona said their minds are now linked). He (with a help from Magister Labrid) saved Verdona and destroyed the Synthroid.

Anodite kiss

Young Max and Verdona

Verdona invited Max to her planet, but Max denied the offer, saying that he has other things to do on Earth. They kissed and Verdona left. The next Monday, he went into astronaut training. Eventually, Max joined the Plumbers after Magister Labrid recruited him. He told Ben that was the story of how he and Verdona met later and said good night to Verdona before he went to sleep.

Max appeared once more in Prisoner Number 775 Is Missing when Area 51 was attacked and was furious when he learn of its alien prisoners being held there illegally and as a result had caused friction between Rozum and Max.


In Omniverse, Max is currently the commander of the Bellwood Plumber base and Earth. Max first appeared in the episode The More Things Change: Part 1 where he tried to inform Ben on something until the alarm goes off. Max isn't seen again in this episode but it is revealed he sent a new Plumber named Rook Blonko to be Ben's new partner.

In The More Things Change: Part 2, Max, along with Magister Patelliday and some Plumbers, arrived to take away Psyphon and his group who caused trouble in Undertown. Max also explained to Ben that the reason he paired Ben up with Rook because he felt that Ben was ready to be a mentor. Ben, at first, wasn't fully up to it, until Rook offered him chili fries.

In A Jolt from the Past, both 61 and 66 year old Max appear in this episode. During a flashback, 11 year old Ben had just defeated the Megawatts using Feedback. Max arrives with rubber blankets, saying how he is glad that Ben still needs them. 66 year old Max appears briefly near the beginning of the episode, where he is upset that Ben was trying to make excuses for being late. Max informs Ben that he isn't working alone anymore.

In Trouble Helix, 61 year old Max mainly appears on a file play-back that was being viewed by Khyber. He goes along with Ben and Gwen to Galvan Prime to tell Ben about the malfunction. Azmuth tells Max to come back in two years to which angers him. Azmuth then decides to fix the Omnitrix after Ben (as XLR8) starts messing with the controls. Max then tells the kids to wait outside while he talks with Azmuth. Max is seen later who tried to help in taking down Malware and rescue Albedo. The plan nearly falls through as Albedo had tampered with the helix trying to destroy Malware rather than save him which turns him into a Negative Mechamorph. Max is told by Ben to rescue Albedo while he'll try to take out Malware as Cannonbolt.

In Of Predators and Prey: Part 1, Max is seen early in the episode trying to catch a scorpion-like alien. Rook aids Max in capturing the alien and Max reveals that he was using the alien in a dish the he and Rook love to eat. Ben informs Max that something is after him and Max asks what Ben should do.

Both the past and present Max Tennyson appears in Of Predators and Prey: Part 2. During the flashback, 61 year old Max drives the Rust Bucket into the large creature known as Terroranchula but it just pushes him aside. Ben manages to fight the creature as Feedback but both the Omnitrix and the Nemetrix time out and the creature turned out to be none other than Phil, a former Plumber. Max watched as Phil was suddenly transported away. 66 year old Max appears briefly at the end of the episode where he rescued Ben and Rook after they escaped from the explosion of Khyber's Ship.

In Outbreak, Max watches as Rook trains with Ben who was using Wildvine. Rook gets beaten by Ben who transformed into Humungousaur and Max told Ben that he needs to learn how to defeats his opponents without using the Omnitrix all the time.

Gone 36

Max fighting a Mechaneer

In Gone Fishin', Max appears along with Ben, Rook, and Magister Patelliday who were all going fishing. Everything was going well until large, mechanical robots called Mechaneers capture Patelliday and surround the group. Ben manages to defeat the robots as Jury Rigg and the three head to Pirate HQ. Max also replies saying how Patelliday can handle himself while he watches Ben defeat Captain Kork. Rook then presses a button releasing all of the boats that were tapped by Kork.

Max appears briefly in Blukic and Driba Go to Mr. Smoothy's where he tried to contact help in order to help stop Trumbipulor.

In Malefactor, 61 year old Max appears as he told Ben and Gwen about the captured Psycholeopterran at Mt. Rushmore. The alarm suddenly went off and Max, Ben, and Gwen went off to find the source of the problem. It turns out to be Malware's doing and Ben proceeds to fight him but the Omnitrix times out. Max then blasts Malware with the Tachyon Cannon but Malware ends up absorbing the weapon. Max watches as Ben continues to fight Malware as Feedback but then Malware leaves saying "he already has what he came for."

Max appears at the end of Arrested Development where he helps take Billy Billions into custody. When Billions was complaining about Ben taking his credit for saving the world, Max responded by telling Billions to act his age and throws Billions in the Plumber's truck. 

In Ben Again, both versions of Max appear where they are confused with the sudden mind change between 11 year old Ben and 16 year old Ben mainly between their voices. 61 year old Max and 66 year old Max soon learned from Professor Paradox that it was Eon's doing and they watch as the Bens used Clockwork to make everything right again.

In Store 23, Max is first seen chasing Liam with Ben. Liam escapes Max but Ben manages to keep up with him as Feedback. Max urges Ben not to use Feedback as there is other aliens in the area but Ben doesn't listen and defeats Liam. Max scolds at Ben for not listening to him and Ben storms off. Max is then seen again at the end of the episode still angry at Ben for running off earlier. Ben then suddenly hugs Max and Max is confused but happy at Ben's attitude.

In Showdown: Part 1, 61 year old Max appears in a flashback where he, along with Gwen and Azmuth, was sitting down talking about Ben's over-usage of Feedback. Ben, greatly upset, then leaves the Rust Bucket without saying much.

In Showdown: Part 2, present Max is first seen talking with an angry Pakmar who demands an apology from Ben for ruining all of his businesses. Max tries to get Ben but notices that Ben isn't even on Earth anymore. Max is then seen much later rescuing Ben, Rook, and Azmuth from the attack of Malware. Max explains that he knew something was wrong when he couldn't find Ben on Earth and used Gwen and her mana tracking powers to locate Ben on Galvan Prime. Max then goes along with Blukic and Driba to try and fix the firewall to prevent Malware from reaching the core and fully taking over Galvan Prime. Max had to give up his belt buckle and his shoe laces in order for Blukic and Driba to fix the firewall which the successfully do. Max is then seen again with his pants still down flying back to Earth along with Ben and the group.

Powers and Abilities

Although Max doesn't have any super powers, he is very skilled in combat and can take on anyone who does have them as he is quite athletic for someone of his age. As a retired Plumber, he has access to a variety of various Plumber tools and weaponry, which he uses skillfully. Aside from that, his experience from his Plumber days made him knowledgeable on various species of aliens. He is also able to strategize well and is skilled in inventing new machines. In Moonstruck, it is shown that he is telepathically connected to his lover, Verdona.

Before joining the Plumbers, Max was a United States Air Force pilot, with dreams of joining NASA and going to the moon. As shown in the episode Moonstruck, he was an expert at flying an F-104 Starfighter and was able to shoot down an alien spacecraft.


Ben 10

Ben 10 Shorts

Ben 10: Alien Force

Ben 10: Ultimate Alien

Ben 10: Omniverse

Ben 10 Movies

Video Games

Ben 10: Protector of Earth

Keys of Plumbers Base

Max helps Ben in his travel around the country. He was captured by Kevin 11 and had to be rescued by Ben. He accesses to Plumber base in Mt. Rushmore and later defeats Zs'Skayr with a sun gun.

Love Interests


Although she was stated dead in Ben 10: Race Against Time, Verdona is the paternal grandmother of Ben, Gwen and Ken Tennyson. She is an Anodite, a free-spirited alien race from the distant planet Anodyne. Verdona left her home world in an unspecified time long before the original series even began to go to Earth for unknown reasons. She landed in St. Louis, Missouri where she met and fell deeply in love with Max Tennyson and the two courted each other. During this time she hid her Anodite heritage very well and blended in with society. They had two known children; Carl and Frank. She then returned to Anodyne to reconnect with her Anodite background, but later returned to Earth to see if her grandchildren had inherited her powers and abilities. Only years later, she realized that her granddaughter, Gwen, had inherited her Anodite abilities. She loved Max for his adventurous and rebellious nature, stating he was similar to Kevin.


During Xylene's early years, she met Max Tennyson, who at the time was a Plumber. She wanted Max to go to Ringa Morr with her, but Max declined it


  • 4 inch Alien Collection Max Tennyson (Alien Force)
  • 4 inch Alien Collection Max with Plumber gear



Max's cameo in "Ben 10-Generator Rex: Heroes United"

  • According to Xylene and Azmuth, Max was supposed to get the Omnitrix, but when Ben found it, his DNA was close enough to Max's that it attached itself to his wrist instead.
  • Derrick confirmed that Max in Omniverse is a reference to the DC comic book character Shazam.[1]
  • Max was a Magister for at least 5 years.
  • In the beta version of the original series, Max originally wasn't a Plumber, he was just an average inventor.
  • In Dimension 23, Max died before the Omnitrix reached Earth, leaving Ben 23 with no mentor or moral support until Azmuth 23 takes up that position.
  • Max's cooking is a running gag throughout the franchise as most humans, (especially Ben, Gwen and Kevin) find the cuisine to be disgusting, while aliens, (Rook, Xylene and others) can't get enough of it. 
  • Characters wearing shirts identical to Max's appear throughout the series as a running gag.
  • According to Derrick J. Wyatt, Max loses his arm in the Limax War, which happens in the future.[2]
  • Verdona stated that Max was similar to Kevin when he was Kevin's age; an example being in Moonstruck with young Max saying "Hey! Watch the paint job!" and "My ride!", both of which have been said by Kevin.
Max Tennyson in Robot Chicken

Max in Robot Chicken

  • Max Tennyson made an appearance in the fifth episode of the sixth season of Robot Chicken, "Hurtled from a Helicopter into a Speeding Train".


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