Season 1
(2005)
Cast
as Ben Tennyson (voice)
as Gwen Tennyson (voice)
as Grandpa Max (voice)
as Diamondhead / XLR8 (voice)
as Stinkfly / Wildmutt (voice)
as Ghostfreak / Heatblast / Vilgax (voice)
as Four Arms (voice)
Episodes
And Then There Were 10 6.5
December 27, 2005
Average kid, ten year old Ben Tennyson, his Grandpa Max and his cousin Gwen's summer of adventure takes an odd turn whe…
Washington B.C. 5.4
January 13, 2006
Ben must fight Dr. Animo, a crazed scientist who has a DNA-altering device.
The Krakken 5.6
January 14, 2006
Ben has his hands full with a giant sea monster and an evil poacher.
Permanent Retirement 5.3
January 21, 2006
Ben must rescue his aunt and grandfather when they are held hostage by shape-shifting aliens.
Hunted 6.2
January 28, 2006
Ben is pursued by three bounty hunters sent by Vilgax to steal the Omnitrix.
Tourist Trap 5.6
February 4, 2006
Ben accidentally releases creatures made of electric energy and must use his own powers to recapture them.
Kevin 11 6.2
February 11, 2006
Ben meets a mutant who can absorb any form of energy and may be after the Omnitrix.
The Alliance 6.6
February 18, 2006
Ben clashes with a female gang member who's become part cyborg.
Last Laugh 5.0
February 25, 2006
Ben discovers an evil circus that's headed by a psychic vampire clown named Zombozo.
Lucky Girl 5.0
March 4, 2006
Ben battles a sorcerer who possesses a number of charms, and Gwen suddenly becomes a superhero when one of the charms f…
A Small Problem 6.8
March 11, 2006
Ben gets revenge on an amusement-park attendant who said he was too small to go on a ride.
Side Effects 5.3
March 18, 2006
Ben's summer cold causes strange physical changes in his alien personas.
Secrets 7.0
March 25, 2006
Vilgax tries to get the Omnitrix for himself while Grandpa Max's strange past becomes known, causing a showdown between…