Credits
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)
Henry Gibson
Lord Pain (voice)
Phil LaMarr
Mr. Spleen (voice)
Rachael MacFarlane
Mindy / Velma's Mom / Eris (voice)
Michael McKean
Kalgoron (voice)
Renee Raudman
Ms. Butterbean (voice)
David L. Lander
Curtis (voice)
Fred Willard
Boogey (voice)
James Sie
Plain Cow (voice)
Armin Shimerman
General Skarr (voice)
Dave Wittenberg
Velma's Dad / Spider #1 (voice)
Art
Marc Perry
Art Direction
Directing
Matt Engstrom
Director
Gordon Kent
Director
Kris Sherwood
Director
Juli Murphy
Director
Production
Kris Zimmerman
Casting
Brian A. Miller
Executive Producer
Maxwell Atoms
Executive Producer, Creator, Writer
Louis J. Cuck
Producer
Shaun Cashman
Supervising Producer
Jennifer Pelphrey
Supervising Producer
Sound
Drew Neumann
Original Music Composer
Gregory Hinde
Original Music Composer