Based on the original animated series Ben 10. Ben becomes targeted by an evil Mechamorph Warrior, named "Retaliator," who mistakenly blames Ben for something he did not do and attempts to destroy all aliens.
Tara Strong
as Ben Tennyson, Upgrade
Meagan Moore
as Gwen Tennyson
Paul Eiding
as Grandpa Max
Richard McGonagle
as Fourarms
Dee Bradley Baker
as Stinkfly, Wildmutt
Richard Steven Horvitz
as Grey Matter
Jim Ward
as Diamondhead
Steve Blum
as Heatblast / Mechamorph
