- Casey Kasem
- Â Shaggy Rogers 2 episodes, 1978
- Don Messick
- Â Scooby-Doo 2 episodes, 1978
- Patricia Stevens
- Â Velma / ... 2 episodes, 1978
- Janet Waldo
- Â Arlene Wilcox / ... 2 episodes, 1978
- Heather North
- Â Daphne Blake 2 episodes, 1978
- Alan Oppenheimer
- Â Squire Marley 2 episodes, 1978
- John Stephenson
- Â Man / ... 2 episodes, 1978
- Lennie Weinrib
- Â Additional Voices 2 episodes, 1978
- Frank Welker
- Â Fred Jones 2 episodes, 1978
- Nicole Jaffe
- Â Velma Dinkley unknown episodes
