Tara Strong
Ben Tennyson (voice)
Meagan Moore
Gwen Tennyson (voice)
Paul Eiding
Grandpa Max (voice)
Dee Bradley Baker
Stinkfly / Wildmutt (voice)
Steve Blum
Ghostfreak / Heatblast / Vilgax (voice)
Richard McGonagle
Four Arms (voice)
Jim Ward
Diamondhead / Wildvine / XLR8 (voice)
Richard Steven Horvitz
Grey Matter (voice)
Fred Tatasciore
Cannonbolt / Ripjaws (voice)
Khary Payton
Hex (voice)
Richard Doyle
Enoch (voice)
Dwight Schultz
Dr. Animo (voice)
Charlie Schlatter
Kevin Levin (voice)
Jennifer Hale
Teacher / Jamie (voice)
Kari Wahlgren
Charmcaster (voice)
Tom Kane
Ultimos (voice)
Vanessa Marshall
Female Cannonbolt / Policewoman (voice)
Kim Mai Guest
Pinky / Kid (voice)
Kath Soucie
Little Boy / Tiffany (voice)
Cree Summer
Frightwig (voice)
Jeff Doucette
Thumbskull (voice)
Billy West
Guard / Punk #2 (voice)
Dave Fennoy
Hoverboard (voice)
Nancy Linari
Automated Voice (voice)
Adam Wylie
JT (voice)
Grey DeLisle
Xylene (voice)
Dave Wittenberg
Harold / Escape Artist / Emcee (voice)
Michael Dorn
Vicktor (voice)
Robert Patrick
Phil (voice)
Michael Reisz
Kevin Levin (voice)
Nolan North
Teen Attendant / Henchman (voice)
Rosalind Chao
Councilwoman Liang (voice)
Miriam Flynn
Aunt Vera (voice)
John Kassir
Zombozo (voice)
Larry Cedar
Howell (voice)
Nicholas Guest
Clancy (voice)
Robin Atkin Downes
Jonah (voice)
Walker Edmiston
Marty (voice)
Mikey Kelley
Gang #2 / Attendant / Helicopter Pilot (voice)
Robert Picardo
Leader Alien (voice)Scooter Tidwell
DirectorGreg Klein
WriterDave Johnson
Character DesignerDave Johnson
Art Direction
Sam Register
ProducerTom Pugsley
Story EditorAlex Soto
Supervising ProducerMike Collins
Production Office AssistantDonna Smith
Post Production ProducerPoe K. Tan
Background DesignerDusty Abell
Prop DesignerKersti Myrberg
Painter