Thumbskull is a minor recurring villain who is regularly accompanied by his teammates Frightwig and Acid Breath.
Thumbskull in the Original Series
Thumbskull is a hulking figure and his size often intimidates others. As his name implies, he has a giant toenail on his otherwise bald forehead.
he looks more muscular and his chin is much larger. He now has one large finger on each hand, complete with a single fingernail each with a single thumb.
Powers and Abilities
Thumbskull has incredible strength (though inferior to that of
Four Arms). However, he also has limited intelligence, normally serving as the 'brawn' of the group, as he is easily outsmarted by intelligent opponents.
Thumbskull first appeared in
as a henchmen working under Last Laugh Zombozo. He later then appeared in when the Ghostfreaked Out Circus Freak Trio went solo and they were forced to work under Ghostfreak until his defeat. Their last on screen appearance was in in a league of Ben’s villains working under the Ben 10 vs. The Negative 10 Forever King to steal the Sub Energy for him.
He was easily beaten by
Ben, normally even worse than the others were. His name is a play on the insult "numbskull”, as well as the obvious appearance gag.
Ben 10: Omniverse
Thumbskull appears in
when he and his team are re hired by Zombozo to distract Ben while he is feeding off people's fear.
Something Zombozo This Way Comes
Ben 10 Villains
Albedo • Aggregor • Diagon • Incursean Empire ( Attea, Dr. Psychobos, Frolic, Lieutenant Rana, Milleous, Sang-Froid, Major Glorff), • Forever Knights ( Connor, Driscoll, Enoch, Joseph Chadwick, Patrick, Red Knight, Sir Cyrus, Sir Dagonet, Sir Morton, Sir Reginald, Squire, Twin Knights, Urian) • The Faction ( Khyber, Khyber's Panuncian, Malware) • The Rooters • Vilgax • Zs'Skayr
Aloysius Animo • DNAliens • Elena Validus • Eon • Flame Keepers' Circle ( Conduit Edwards, Esoterica) • Hex • Lucubra • Michael Morningstar • Negative 10 • Psyphon • The Sotoraggian Mercenaries ( Sixsix, Sevenseven, Eighteight, Twotwo) • Vulkanus • Will Harangue • Xenocyte • Zs'Skayrs's Servants ( King Viktor, Mummy, Yenaldooshi)
Adwaita • Aggregor's Soldiers • Animo's mutant animals ( Frankencryptid, Mutant Ant, Mutant Bat, Mutant Bat 2, Mutant Chicken, Mutant Cockatiel, Mutant Frog, Mutant Giraffe, Mutant Hamster, Mutant Hornet, Mutant Lepidopterran, Mutant Mammoth, Mutant Mosquito, Mutant Prairie Dog, Mutant Seagull, Mutant Squid, Mutant Tyrannosaurus, Mutant Kangaroo, Mutant Snail) • Billy Billions • Camille's Ex-Boyfriend • Captain Kork • Carl Nesmith • Circus Freak Trio ( Acid Breath, Frightwig, Thumbskull) • Clancy • Coach Finn • Computron • Computron's Minions • Evil Way Big • Fistrick's Gang ( Fistrick, Corvo, Hoodlum, Unnamed Thug) • Garbage Monster • Gorvan • Highbreed Tree Monster • Howell Wayneright • Hulex ( Hulex Colonel, Hulex Workers) • Jarrett • Jennifer Nocturne • Kraab • Kolar • Ma Vreedle • Mayor Coleman • Mechaneers • Mizaru • Morgg • Mr. Mann • Mrs. Mann • Mutant Seagull (Ultimate Alien) • Mycelium • Nanochips • Nyancy Chan • Paltroon • Palorfang • Pickaxe Aliens • Plant Alien • Plant Clones • Psyphon's Gang ( Bubble Helmet, Bug-Lite, Liam, Sweet-Eels Sparklefunk, Thunderpig, Tummyhead, Unknown Psyphon Thug) • R.E.D. • Ragnarok • Red Robot • Road Crew ( Baron Highway, Road Rage, Turbine) • Rojo's Gang ( Rojo) • Sublimino • S.A.M. • Seebik • Slix Vigma • Squires • Ssserpent • Sunder • Sunny • Synthroid • Techadon Robots • The Decoy Queen • The Great One • Trumbipulor • Violet Offenders • Vilgax's Drones • Zombie Clown • Zombozo
Argit • Baz-El • Bellicus • Blarney T. Hokestar • Fistina • Hope • Hope's Stone Creatures • Mazuma • Mr. Baumann • Null Guardians • Pakmar • Raff • Serena • Simian • Solid Plugg • Vreedle Brothers ( Octagon Vreedle, Rhomboid Vreedle)
Bivalvan • Cash • Dragon • Decka • Devlin Levin • Eon's Servants • Ester • Helen Wheels • Highbreed ( Reinrassic III, Highbreed Commander, Highbreed Councilors) • J.T. • Kenko • Kevin Levin • Khyber's Dog • Manny Armstrong • P'andor • Prisoner 775 • Ra'ad • Retaliator • Sentient Ultimate Big Chill • Sentient Ultimate Cannonbolt • Sentient Ultimate Echo Echo • Sentient Ultimate Humungousaur • Sentient Ultimate Spidermonkey • Sentient Ultimate Swampfire • Sir George • Technorg • The Great One's Worshipers ( Leader Alien, Enforcer Alien, Interpreter Alien) • Thomas Jingles • Vance Vetteroy • Victor Validus • Winston • Yeti
Generator Rex Villains
Alpha • Biowulf • Black Knight • Skalamander • I-Bol
The Secret Saturdays Villains
V.V. Argost • Munya
Future & Alternate Villains
Crooks (Dimension 23) • Dr. Animo (Ben 10,000 Timeline) • Exo-Skull • Gorvan (Alternate Timeline) • Kevin 11,000 • Mot Snikrep • Sploot • Vilgax (Ben 10,000 Timeline) • Vilgax (Gwen 10 Timeline)