Ben Tennyson / Upgrade / Sandra Tennyson / Computer (voice)
Gwen Tennyson / Girl Student (voice)
Grandpa Max (voice)
Stinkfly / Vulpimancers / Carl Tennyson / Cash Murray (voice)
Heatblast / Mechamorph
Diamondhead
Four Arms / Ben’s Teacher (voice)
Way Big / Evil Way Big (voice)
Grey Matter / Dispatcher (voice)
Tetrax (voice)
Dr. Animo (voice)
JT (voice)
Azmuth (voice)
Retaliator / Boy Student (voice)
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.
