The Grim Adventures of the Kids Next Door

Grey DeLisle
Mandy (voice)

Ben Diskin
Numbuh 1 / Numbuh 2 / Delightful Children F.D.T.L. (voice)

Lauren Tom
Numbuh 3 (voice)

Dee Bradley Baker
Numbuh 4 / Delightful Children F.D.T.L. (voice)

Cree Summer
Numbuh 5 / Delightful Children F.D.T.L. (voice)

Richard Steven Horvitz
Billy / Harold (voice)

Greg Eagles
Grim (voice)

Rachael MacFarlane
Mindy / Numbuh 362 (voice)

Matt Levin
Numbuh 60 (voice)

Tony Sampson
Eddy (voice)

Vanessa Marshall
Irwin (voice)

Dave Wittenberg
Numbuh 74.239 (voice)

Matt Hill
Ed (voice) (uncredited)

Sam Vincent
Edd (voice) (uncredited)