On screen
Cast
30 credited performers
Casey Kasem
Shaggy Rogers (voice)
Don Messick
Scooby-Doo / Scrappy-Doo (voice)
Frank Welker
Fred Jones (voice)
Lennie Weinrib
Scrappy-Doo (voice)
Heather North
(voice)
Patricia Stevens
Velma Dinkley (voice)
Artwork unavailable
Marla Frumkin
Wendy Airs
John Stephenson
McGee (voice)
Michael Bell
Eddie Drake / Sky Skeleton
Alan Oppenheimer
(voice)
Marilyn Schreffler
Lorraine
Pat Fraley
Howard Gruger / Blue Scarab
Jack Angel
Jerry Sloan
Stan Jones
Mr. Greenfield
William Callaway
Mr Pratt
Joan Gerber
(voice)
Ginny Tyler
Tessie
Louis Jourdan
Chuck
Marlene Aragon
Sally
Michael Rye
Crayton Aimes (voice)
William Woodson
Harrison Stone (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)