(voices)

Casey Kasem

Acting

Buttercup (Voice)

E. G. Daily

Acting

Little Suzy (Voice)

Mae Whitman

Acting

Bubbles (Voice)

Tara Strong

Acting

Jhonny Bravo (Voice)

Jeff Bennett

Acting

Blossom (Voice)

Cathy Cavadini

Acting

Dexter (Voice)

Christine Cavanaugh

Acting

I.R. Baboon (Voice) / Cow (Voice) / Chicken (Voice) / Red Guy (Voice)

Charlie Adler

Acting

Billy (Voice)

Richard Steven Horvitz

Acting

Mandy (Voice)

Grey DeLisle

Acting

Bunny Bravo (Voice)

Brenda Vaccaro

Acting

The Grim Reaper (Voice)

Greg Eagles

Acting

Professor Utonium (Voice)

Tom Kane

Acting

The Mayor (Voice)

Tom Kenny

Acting

I.R. Baboon

Charlie Adler

Acting

I.M. Weasel (Voice)

Michael Dorn

Acting

Courage (Voice)

Marty Grabstein

Acting

Muriel Bagge

Thea White

Acting

Muriel Bagge (Voice)

Thea White

Acting

Dee Dee (voice)

Allison Moore

Acting

(voices)

Frank Welker

Acting

(voice)

Mindy Cohn

Acting

(voice)

Jim Cummings

Acting

(voices)

Mark Hamill

Acting

(voice)

William Hanna

Directing

(voice)

Joseph Barbera

Production

(archive footage)

Ted Turner

Production

(archive footage)

Don Messick

Acting