Ben Tennyson (voice)
Gwen Tennyson (voice)
Grandpa Max (voice)
Stinkfly / Wildmutt (voice)
Ghostfreak / Heatblast / Vilgax (voice)
Four Arms (voice)
Diamondhead / Wildvine / XLR8 (voice) / Diamondhead / XLR8 (voice)
Grey Matter (voice)
Cannonbolt (voice) / Cannonbolt / Ripjaws (voice)
Hex (voice) / Foreman / Forever Knight #1 (voice)
Enoch (voice) / Mr. Jingles (voice)
Dr. Animo (voice) / Earl (voice)
Kevin Levin (voice)
Teacher / Jamie (voice) / Joey (Rojo) (voice)
Charmcaster (voice) / Grey Matter Gwen (voice)
Tini (voice) / Diamond Head Gwen / Four Arms Gwen (voice)
Ultimos (voice) / Donovan (voice)
Andy (voice) / Elsgood / Grandkid / Kid #1 (voice)
Little Boy / Tiffany (voice) / Edwin (voice)
Frightwig (voice)
Thumbskull (voice)
Guard / Punk #2 (voice) / Kraab (voice)
Radio Newscaster / Doctor (voice) / Hoverboard (voice)
Automated Voice (voice) / Tour Guide / Reporter / Screaming Woman (voice)
