The Grim Adventures of Billy and Mandy

Greg Eagles

Grim (voice)

Richard Steven Horvitz

Billy (voice)

Grey DeLisle

Mandy (voice)

Vanessa Marshall

Irwin (voice)

Quinton Flynn

Peter Renaday

Earl Boen

Tom Kenny

Mark Hamill

Jeff Bennett

Clyde Kusatsu

Jess Harnell

Jeannie Elias

Malaria

Alan Oppenheimer

Father Time

Keone Young

Kwan Ti

Wayne Knight

Jack O'Lantern

Scott Menville

Pinocchio

Mary Jo Catlett

Witch

Fred Willard

Boogey

Frank Welker

Boskov, Scooby-Doo (voice)

Dawnn Lewis

Grim's Granny

Robin Atkin Downes

Rob Paulsen

Tooth Fairy

Jane Carr

Pud'n

Diedrich Bader

Hoss Delgado (voice), Hoss Delgado

Brian Tochi

Chef

David Warner

Nergal (voice)

Rachael MacFarlane

Mindy, Eris (voice), Eris

Billy West

The Nerve, Guard, Viper

Dee Bradley Baker

Mandy's Dad, Worm, Announcer

Phil LaMarr

Hector Con Carne, Dracula, Judge Roy Spleen (voice)

James Arnold Taylor

Fred Flintstone

Jennifer Hale

Gladys, Gladys (voice)

Nika Futterman

Pandora

Martin Jarvis

Nergal

Maxwell Atoms

Jeff the Spider (voice)

Armin Shimerman

General Skarr

Henry Gibson

Lord Pain

John Vernon

Dean Toadblatt

Candi Milo

Grim's Mom (voice), Guillermo (voice)

'Weird Al' Yankovic

Squid Hat

C.H. Greenblatt

Fred Fredburger (voice)

Debi Derryberry

Nergal Jr.

Jake Thomas

Nigel Planter

Tom Kane

Captain Heifer, Professor Utonium

Ronnie Schell

Dean Toadblatt

John Kassir

Lord Moldybutt

Laraine Newman

Crossing Guard (voice)

Cree Summer

Cave Witch (voice)

R. Lee Ermey

Sergeant / Drill Sergeant

Michael Dorn

King Beardbottom / Clown / Dwarf #2

Jennifer Darling

Pollywinkle (voice)

Malcolm McDowell

Baron Von Ghoulish

Carol Kane

Mrs. Claus

Gilbert Gottfried

Santa Claus

Betty White

Mrs. Doolin (voice)

Jay Gordon

Sick Guy, Zeus (voice)