Frank Tennyson is the husband of Lili Tennyson, the father of Gwen and Ken, the brother of Carl Tennyson and the son of Max Tennyson and Verdona. He was discussed in the last episode of the original series, when Gwen stated that her father got a new job and had to move and go to Ben's school. He was later introduced in the in the episode Ben 10: Alien Force . When Gwen told him about her powers, he said he hoped that the day she met her grandmother would never come.
What Are Little Girls Made Of?
He apparently already knew about his
father's life as a Plumber. He does not have the "the spark" that his daughter has and that gives her her powers; however, in the episode What Are Little Girls Made Of?, Grandma Verdona states that he always knew when she was eavesdropping on him while being invisible to the human eye. He also thought Gwen was going out with Kevin without telling him or her mother, with had made both blush.
Frank wears glasses and has thin brown hair. He wears a smart polo shirt with a burgundy sweatshirt covering it. He also wears tan trousers.
As stated by Gwen in , he is a lawyer.
Double or Nothing Frank is voiced by George Newbern who is best known for voicing Superman in various DC cartoons and movies.
Frank and his brother, Carl, are human. Neither of them have "the spark".
Ben 10 Characters
Ben Tennyson | Gwen Tennyson | Kevin Levin | Max Tennyson | Rook Blonko
Julie Yamamoto | Plumbers ( Manny Armstrong, Helen Wheels, Alan Albright, Cooper Daniels, Tack, Magister Pyke, Magister Korwak, Magister Hulka, Joel Tennyson, Gordon Tennyson, Betty Jean Tennyson, Wes Green, Blukic, Driba, Magister Patelliday, Sheriff Wat-Senn, Molly Gunther, Plumber Jerry, Magister Arnux) | Jimmy Jones | The Galvan ( Azmuth, Retaliator, Galvan Teacher) | Professor Paradox | Ship | Eunice | Zed
Petrosapiens ( Tetrax Shard, Sugilite) | Gluto | Galactic Enforcers ( Ultimos, Synaptak, Tini) | The Highbreed ( Reinrassic III) | Myaxx | Xylene | Colonel Rozum | SACT ( Lieutenant Steel) | Ignatius | Technorg | Hector | Elsgood | Sheriff Mason | Kai Green | Ishiyama | Tennyson Family ( Carl Tennyson, Sandra Tennyson, Frank Tennyson, Lili Tennyson, Verdona Tennyson, Camille Mann, Kenneth Tennyson) | Levin Family ( Mrs. Levin, Harvey Hackett) | Rook Family ( Rook Da, Rook Bralla, Rook Shar, Rook Shim, Rook Shi, Rook's Brother) | Ester | Gourmands ( Private Brown Bag, Queen Voratia Rumbletum, Sergeant Cast Iron, Sergeant Cookmeister) | Lewodans ( Tiffin, Sicily) | Rad Dudesman
Albedo | Elena Validus | Phil | Forever Knights ( Squire, Connor, Sir Cyrus, Patrick, Sir Driscoll) | Vilgax | Michael Morningstar | Sunny | Antonio | Cash Murray | J.T. | Oliver Thompson | Zaw-Veenull | Probity
Deceased Supporting Characters and Allies
Devin Levin | Magister Labrid | Magister Prior Gilhil | Pierce | Sir George | Winston | Victor Validus | Kwarrel | The Sentinel |
Prisoners of Aggregor
Bivalvan | Galapagus | P'andor | Andreas | Ra'ad
Hope | Hope's Stone Creatures | Argit | Baz-El | Simian | Vreedle Brothers ( Octagon Vreedle, Rhomboid Vreedle) | Blarney T. Hokestar | Raff | Serena | Bellicus | Mr. Baumann | Pakmar | Mazuma
Generator Rex Heroes
Rex Salazar | Bobo Haha | Agent Six | Rebecca Holiday | White Knight | Caesar Salazar
The Secret Saturdays Heroes
Zak Saturday | Doc Saturday | Drew Saturday | Fiskerton Saturday | Komodo | Zon
Future & Alternate Heroes
Ben 10,000 (Ultimate Alien) | Ben's Team (Alternate Timeline) ( Ben 10,000 (Alternate Timeline), Gwendolyn Tennyson (Alternate Timeline), Ken 10, Devlin Levin, Max Tennyson (Alternate Timeline), Kenny's Stone Pet) | Ben's Team (Dimension 23) ( Ben 23 | Tetrax Shard (Dimension 23) | Sevenseven (Dimension 23) | Azmuth (Dimension 23)) | Ben Tennyson (RAT Timeline) | Gwen Tennyson (RAT Timeline) | Max Tennyson (RAT Timeline) | Plumbers (RAT Timeline) ( Principal White, Mrs. Dalton, Mr. Hawkins, Fire Chief Whittington, Constantine Jacobs, Mr. Enguells, Mr. Jenyx, Mrs. Carlay) | [Ben Tennyson (Gwen 10 Timeline)]] | Gwen 10 | Max 10 |