Tack is an alien that Ben met at Plumbers' Academy.
Tack is a young, wimpy alien. He has dark hair that is in a mohawk style and also wore a dark brown jacket and light brown jeans. His body color is teal green and his eyes are the size of tennis balls. He wears a standard
Powers and Abilities
Tack has the ability to extend his neck.
Tack is a very kind and very shy alien. He also sees Ben as a role model, hero, and a best friend.
Ben 10: Ultimate Alien
Tack's jacket is similar to Argit's.
Tack's neck stretching is very similar to E.T.
Ben 10 Characters
Ben Tennyson | Gwen Tennyson | Kevin Levin | Max Tennyson | Rook Blonko
Julie Yamamoto | Plumbers | Jimmy Jones | The Galvan ( Azmuth, Retaliator, Galvan Teacher) | Professor Paradox | Ship | Eunice | Zed
Petrosapiens ( Tetrax Shard, Sugilite) | Gluto | Galactic Enforcers | The Highbreed ( Reinrassic III) | Myaxx | Xylene | Colonel Rozum | SECT ( Lieutenant Steel) | Ignaceous | Technorg | Hector | Elsgood | Sheriff Mason | Kai Green | Ishiyama | Tennyson Family | Levin Family | Rook Family | Ester | Gourmands | Lewodans ( Tiffin, Cicely, Caitiff) | Rad Dudesman | Gar Red Wind
Albedo | Elena Validus | Phil | The Forever Knights ( Squire, Connor, Sir Cyrus, Patrick, Sir Driscoll) | Vilgax | Michael Morningstar | Sunny | Antonio | Cash Murray | J.T. | Oliver Thompson | Zaw-Veenull | Probity | Viktoria
Deceased Supporting Characters and Allies
Devin Levin | Magister Labrid | Magister Prior Gilhil | Pierce Wheels | Sir George | Winston | Victor Validus | Kwarrel | The Sentinel
Prisoners of Aggregor
Charmcaster | Charmcaster's Stone Creatures | Argit | Baz-El | Simian | Vreedle Brothers ( Octagon Vreedle, Rhomboid Vreedle) | Blarney T. Hokestar | Raff | Pakmar | Mazuma | Solid Plugg
Bivalvan | Galapagus | P'andor | Andreas | Ra'ad
Serena | Bellicus | Mr. Baumann
Generator Rex Heroes
The Secret Saturdays Heroes
Rex Salazar | Bobo Haha | Agent Six | Rebecca Holiday | White Knight | Caesar Salazar
Zak Saturday | Doc Saturday | Drew Saturday | Fiskerton Saturday | Komodo | Zon
Future & Alternate Heroes
Ben 10,000 (Ultimate Alien) | Ben's Team (Alternate Future) ( Ben 10,000 (Ben 10), Gwendolyn Tennyson (Alternate Futuree), Ken 10, Devlin Levin, Max Tennyson (Alternate Future), 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) | Ben Tennyson (Gwen 10) | Gwen 10 | Max 10