Scooby-Doo and Scrappy-Doo

Lennie Weinrib

Scrappy-Doo (voice)

Casey Kasem

Shaggy Rogers (voice)

Don Messick

Scooby-Doo (voice), Scooby-Doo / Scrappy-Doo (voice)

Heather North

Daphne Blake (voice), (voice)

Frank Welker

Deputy Dusty, (voice), Fred Jones (voice)

Ginny Tyler

Tessie

Michael Bell

Joey Cassette, Eddie Drake / Sky Skeleton, Stage-Hand / Professor Carver (voice)

Patricia Stevens

Velma Dinkley (voice)

Pat Fraley

Howard Gruger / Blue Scarab, Tiger Morris

Stan Jones

Mr. Moss, Mr. Greenfield

Jack Angel

Brandon Davies (voice), Jerry Sloan

Louis Jourdan

Chuck

Alan Oppenheimer

(voice), Mr. Percy, Mr. Husai

Marlene Aragon

Sally

Michael Rye

Crayton Aimes (voice)

Marilyn Schreffler

Lorraine, Amelia Parmer, Girlfriend / Young Girlfriend (voice)

William Woodson

Harrison Stone (voice)

John Stephenson

McGee (voice), Miguel Valdez, Nick Papas / Lord Silvertree, Chef, Sylvester

William Callaway

Mr Pratt, Morgan the Magician

Joan Gerber

Lefty Callahan / Mrs. Cornell / Vampire, (voice)

Kenneth Mars

Director

Julie McWhirter

(voice)

Janet Waldo

(voice)

Scott Menville

(voice)

Peter Cullen

(voice: credit only)

Scatman Crothers

(voice)

Hamilton Camp

(voice)

Gay Autterson

(voice)

B.J. Ward

(voice)