Full cast of The Grim Adventures of Billy and Mandy

Vanessa Marshall

Irwin (voice)

185 episodes

Greg Eagles

Grim (voice)

184 episodes

Richard Steven Horvitz

Billy (voice)

184 episodes

Grey DeLisle

Mandy (voice)

184 episodes

Rachael MacFarlane

Mindy / Mom #3 (voice) / Eris / Eris (voice)

10 episodes

Diedrich Bader

Hoss Delgado (voice) / Hoss Delgado

6 episodes

Billy West

Viper / The Nerve / Guard

6 episodes

Dee Bradley Baker

Mandy's Dad / Announcer / Worm

6 episodes

Phil LaMarr

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

6 episodes

Maxwell Atoms

Jeff the Spider (voice)

6 episodes

Candi Milo

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

6 episodes

Armin Shimerman

General Skarr

5 episodes

David Warner

Nergal (voice)

4 episodes

Jake Thomas

Nigel Planter

4 episodes

Brian Tochi

Chef

3 episodes

Jennifer Hale

Gladys (voice) / Gladys

3 episodes

Martin Jarvis

Nergal

3 episodes

John Vernon

Dean Toadblatt

3 episodes

Quinton Flynn

2 episodes

Peter Renaday

2 episodes

Jess Harnell

2 episodes

Frank Welker

Scooby-Doo (voice) / Boskov

2 episodes

Dawnn Lewis

Grim's Granny

2 episodes

Jane Carr

Pud'n

2 episodes

Henry Gibson

Lord Pain

2 episodes

Tom Kenny

PPG Narrator/ Bird (voice)

2 episodes

'Weird Al' Yankovic

Squid Hat

2 episodes

C.H. Greenblatt

Fred Fredburger (voice)

2 episodes

Debi Derryberry

Nergal Jr.

2 episodes

Tom Kane

Captain Heifer / Professor Utonium (voice)

2 episodes

John Kassir

Lord Moldybutt

2 episodes

Jay Gordon

Zeus (voice) / Sick Guy

2 episodes

Earl Boen

1 episode

Mark Hamill

1 episode

Jeff Bennett

1 episode

Clyde Kusatsu

1 episode

Jeannie Elias

Malaria

1 episode

Alan Oppenheimer

Father Time

1 episode

Keone Young

Kwan Ti

1 episode

Wayne Knight

Jack O'Lantern

1 episode

Scott Menville

Pinocchio

1 episode

Mary Jo Catlett

Witch

1 episode

Fred Willard

Boogey

1 episode

Robin Atkin Downes

1 episode

Rob Paulsen

Tooth Fairy

1 episode

James Arnold Taylor

Fred Flintstone

1 episode

Nika Futterman

Pandora

1 episode

Ronnie Schell

Dean Toadblatt

1 episode

Laraine Newman

Crossing Guard (voice)

1 episode

Cree Summer

Cave Witch (voice)

1 episode

R. Lee Ermey

Sergeant / Drill Sergeant

1 episode

Michael Dorn

King Beardbottom / Clown / Dwarf #2

1 episode

Jennifer Darling

Pollywinkle (voice)

1 episode

Malcolm McDowell

Baron Von Ghoulish

1 episode

Carol Kane

Mrs. Claus

1 episode

Gilbert Gottfried

Santa Claus

1 episode

Betty White

Mrs. Doolin (voice)

1 episode

Susanne Blakeslee

Crabina / Mom #1 (voice)

1 episode

Chris Cox

Principal Goodvibes (voice)

1 episode

Julian Stone

Sir Raven / Man (voice)

1 episode

Dorian Harewood

Burrito/News Reporter (voice)

1 episode