Casey Kasem as Shaggy Rogers (voice)

Tiffany as Self

Valerie Harper as Self

Penny Singleton as Jane Jetson (voice)

Phyllis Diller as Self

Tony Danza as Self - Host

Annie Potts as Self - Host

Victor Borge as Self

Shari Belafonte as Self

Sammy Davis Jr. as Self

Joe Ferguson as Self

Whoopi Goldberg as Self

Tommy Lasorda as Self

Betty White as Self

Jonathan Winters as Self

William Hanna as Self

Joseph Barbera as Self

Greg Berg as Baba Looey / Augie Doggie (voice)

Mel Blanc as Barney Rubble (voice)

Greg Burson as Yogi Bear / Huckleberry Hound / Quick Draw McGraw / Snagglepuss

Henry Corden as Fred Flintstone (voice)

Don Messick as Scooby-Doo / Ranger Smith / Boo-Boo Bear / Muttley / Bamm-Bamm Rubble / Papa Smurf

John Stephenson as Mr. Slate (voice)

Jean Vander Pyl as Wilma Flintstone (voice)

Jeff Bergman as George Jetson (voice)

Janet Waldo as Judy Jetson / Penelope Pitstop / Josie McCoy (voice)