- Jonathan Lipnicki
- Self
- Sandy Duncan
- Self
- Tim Conway
- Self
- Phyllis Diller
- Self
- Davy Jones
- Self
- Don Knotts
- Self
- Jonathan Winters
- Self
- Robin Williams
- Self
- Marsha Crenshaw
- Announcer
- Jeff Bennett
- Johnny Bravo
- Tom Kenny
- Mayor / Top Cat (voice)
- Arthur Anderson
- Eustace Bain
- Ron McClary
- Captain Linger
- Doug Preis
- Thundarr the Barbarian
- Janet Waldo
- Judy Jetson
- Thea White
- Muriel Bain
- B.J. Ward
- Betty Rubble
- Jennifer Martin
- Miss Sara Bellum
- Charlie Adler
- Big Red Guy / Chicken (voice) (as Charles Adler)
- Grey Griffin
- Daphne Blake
- Caroline Sellers
- Wilma Flintstone (Young)
- B.J. Mitchell
- Barney Rubble (Young)
- Tom Kane
- Professor Utonium / Him (voice)
- Brenda Vaccaro
- Bunny Bravo
- Jeff Bergman
- Porky Pig / Fred Flintstone / Foghorn Leghorn / Elmer Fudd (voice)
- Debbie Allen
- Self
- Christina Augustinos
- Producer
- Daevyd Avalon
- Johnny 2x4
- Kathleen Barr
- Kevin
- Mel Blanc
- Bugs Bunny
- Christine Cavanaugh
- Dexter
- Keenan Christensen
- Jimmy
- Kat Cressida
- Dee-Dee
- Eddie Deezen
- Mandark
- Patrick Ewing
- Self
- William Hanna
- Self
- Matt Hill
- Ed
- Scott Innes
- Scooby Doo
- Janyse Jaud
- Sarah
- Chuck Jones
- Self
- Casey Kasem
- Shaggy
- Peter Kelamis
- Rolf
- Chris Kirkpatrick
- Self
- Don Messick
- Scooby-Doo
- Tony Sampson
- Eddy
- Sam Vincent
- Edd
- Frank Welker
- Fred Jones
