Cast
Greg Eagles
Grim / Sperg (voice)
Richard Steven Horvitz
Billy / Billy's Dad (voice)
Grey DeLisle
Mandy (voice)
Vanessa Marshall
Irwin (voice)
Kari Wahlgren
Velma Green the Spider Queen (voice)
Maxwell Atoms
Jeff the Spider (voice)
Dee Bradley Baker
Chocolate Cow (voice)
Jennifer Hale
Gladysaur (voice)
Chris Cox
Principal Goodvibes (voice)
Jane Carr
Pud'n (voice)
Crew
Marc Perry
Art Direction
Louis J. Cuck
Producer
Kris Zimmerman
Casting
Maxwell Atoms
Executive Producer
Brian A. Miller
Executive Producer
Jennifer Pelphrey
Supervising Producer
Shaun Cashman
Supervising Producer
Maxwell Atoms
Creator
Matt Engstrom
Director
Maxwell Atoms
Writer
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