Casey Kasem
(voice) (17 eps)
Don Messick
Scooby-Doo (voice) (17 eps)
Heather North
Daphne Blake (voice) (17 eps)
Frank Welker
Fred Jones (voice) (17 eps)
Lennie Weinrib
Scrappy-Doo (voice) (16 eps)
Patricia Stevens
Velma Dinkley (voice) (11 eps)
Marla Frumkin
Wendy Airs (6 eps)
Michael Bell
Eddie Drake / Sky Skeleton (3 eps)
John Stephenson
Miguel Valdez (3 eps)
Alan Oppenheimer
Mr. Percy (3 eps)
Marilyn Schreffler
Girlfriend / Young Girlfriend (voice) (3 eps)
Pat Fraley
Tiger Morris (2 eps)
Jack Angel
Jerry Sloan (2 eps)
Stan Jones
Mr. Moss (2 eps)
William Callaway
Mr Pratt (2 eps)
Joan Gerber
Lefty Callahan / Mrs. Cornell / Vampire (2 eps)
Ginny Tyler
Tessie (1 eps)
Louis Jourdan
Chuck (1 eps)
Marlene Aragon
Sally (1 eps)
Michael Rye
Crayton Aimes (voice) (1 eps)
William Woodson
Harrison Stone (voice) (1 eps)
Julie McWhirter
(voice) (1 eps)
Janet Waldo
(voice) (1 eps)
Scott Menville
(voice) (1 eps)
Peter Cullen
(voice: credit only) (1 eps)
Scatman Crothers
(voice) (1 eps)
Hamilton Camp
(voice) (1 eps)
Gay Autterson
(voice) (1 eps)
B.J. Ward
(voice) (1 eps)