Don Messick
Scooby-Doo
/
Sheriff
/
Mouse
/
Police Officer
/
Bank Guard
/
Buck Masters
/
Bulldog
/
Chick
/
Chicks
/
Ebenezer Shark
/
Hank
/
Henry Bascombe
/
John Maxwell
/
Max the Midget
/
Mr. Barnstorm
/
Mr. Grisby
/
Mr. Jenkins
/
Mr. Wetherby
/
Mr. Wickles
/
Parrot
/
Professor Ingstrom
/
Professor Jameson Hyde White
/
Radio Voice
/
Roger Stevens
/
Security Guard
/
The Great Bluestone
/
The Indian Witch Doctor
/
The Phantom
/
The Professor
/
The Spooky Space Kook
/
The Witch
/
Waiter
/
Zeke
/
Zombie 1
(25 episodes, 1969-1970)