Cast (20)

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)

Crew (15)

Jennifer Pelphrey

Supervising Producer

Shaun Cashman

Supervising Producer

Kris Zimmerman

Casting

Maxwell Atoms

Executive Producer

Brian A. Miller

Executive Producer

Louis J. Cuck

Producer

Marc Perry

Art Direction

Maxwell Atoms

Creator

Matt Engstrom

Director

Gordon Kent

Director

Kris Sherwood

Director

Maxwell Atoms

Writer

Drew Neumann

Original Music Composer

Gregory Hinde

Original Music Composer

Juli Murphy

Director