Shaggy (archive footage) (uncredited)

Casey Kasem

Acting

Self

Sandy Duncan

Acting

Self

Davy Jones

Acting

Self

Tim Conway

Acting

Self

Phyllis Diller

Acting

Self

Jonathan Lipnicki

Acting

Mayor of Townsville - Top Cat (voice)

Tom Kenny

Acting

Johnny Bravo (voice)

Jeff Bennett

Acting

Captain Linger (voice)

Ron McClary

Acting

Self

Don Knotts

Acting

Self

Jonathan Winters

Acting

Self

Robin Williams

Acting

Announcer (voice)

Marsha Crenshaw

Acting

Eustace Bain (voice)

Arthur Anderson

Acting

Thundarr the Barbarian (voice)

Doug Preis

Acting

Judy Jetson (voice)

Janet Waldo

Acting

Muriel Bain (voice)

Thea White

Acting

Betty Rubble (voice)

B.J. Ward

Acting

Miss Sara Bellum (voice)

Jennifer Martin

Acting

Big Red Guy - Chicken (voice)

Charlie Adler

Acting

Daphne Blake (voice)

Grey DeLisle

Acting

Wilma Flintstone (Young) (voice)

Caroline Sellers

Acting

Barney Rubble (Young) (voice)

B.J. Mitchell

Acting

Professor Utonium - Him (voice)

Tom Kane

Acting

Bunny Bravo (voice)

Brenda Vaccaro

Acting

Porky Pig - Fred Flintstone / Foghorn Leghorn / Elmer Fudd (voice)

Jeff Bergman

Acting

Self (uncredited)

Debbie Allen

Acting

Producer (uncredited)

Christina Augustinos

Acting

Johnny 2x4 (voice) (archive footage) (uncredited)

David-Paul Grove

Acting

Kevin (voice) (archive footage) (uncredited)

Kathleen Barr

Acting

Bugs Bunny (voice) (archive footage) (uncredited)

Mel Blanc

Acting

Dexter (voice) (archive footage) (uncredited)

Christine Cavanaugh

Acting

Jimmy (voice) (archive footage) (uncredited)

Keenan Christensen

Acting

Dee-Dee (voice) (archive footage) (uncredited)

Kat Cressida

Acting

Mandark (voice) (archive footage) (uncredited)

Eddie Deezen

Acting

Self (uncredited)

Patrick Ewing

Acting

Self (archive footage) (uncredited)

William Hanna

Directing

Ed (voice) (archive footage) (uncredited)

Matt Hill

Acting

Scooby-Doo (voice) (uncredited)

Scott Innes

Acting

Sarah (voice) (archive footage) (uncredited)

Janyse Jaud

Acting

Self (archive footage) (uncredited)

Chuck Jones

Directing

Rolf (voice) (archive footage) (uncredited)

Peter Kelamis

Acting

Self (uncredited)

Chris Kirkpatrick

Acting

Scooby-Doo (voice) (archive footage) (uncredited)

Don Messick

Acting

Eddy (voice) (archive footage) (uncredited)

Tony Sampson

Acting

Edd (voice) (archive footage) (uncredited)

Sam Vincent

Acting

Fred Jones (voice) (archive footage) (uncredited)

Frank Welker

Acting