Ben Tennyson (voice)

Tara Strong

Acting

Gwen Tennyson (voice)

Meagan Moore

Acting

Grandpa Max (voice)

Paul Eiding

Acting

Four Arms (voice)

Richard McGonagle

Acting

Azmuth (voice)

Robert David Hall

Acting

Cannonbolt / Way Big (voice)

Fred Tatasciore

Acting

Myaxx / Salesperson (voice)

Vanessa Marshall

Acting

Dr. Animo (voice)

Dwight Schultz

Acting

Vilgax / Heatblast / Nightmarish Alien / Alien Fly Prisoner (voice)

Steve Blum

Acting

XLR8 / Ripjaws Prisoner / Incarcecon Security (voice)

Jim Ward

Acting

Robotic Lt / Wildmutt / Gluto / Eye Guy / Alien Prisoner #1 / Automated Security (voice)

Dee Bradley Baker

Acting

Grey Matter / Stinkfly Prisoner (voice)

Richard Steven Horvitz

Acting

Upchuck / Alien #2 (voice)

Dave Wittenberg

Acting

Tetrax / Alien #1 / Alien Prisoner #2 (voice)

Dave Fennoy

Acting