Series Cast 16

1. 

   Stuart Pankin

   Earl Sinclair (voice) (5 Episodes)

2. 

   Jessica Walter

   Fran Sinclair (voice) (5 Episodes)

3. Jason Willinger

   Robbie Sinclair (voice) (5 Episodes)

4. 

   Sally Struthers

   Charlene Sinclair (voice) (5 Episodes)

5. 

   Kevin Clash

   Baby Sinclair (voice) (5 Episodes)

6. 

   Sam McMurray

   Roy Hess (voice) (5 Episodes)

7. 

   Michelan Sisti

   Additional Dinosaur Performer / Cavepeople (3 Episodes)

8. 

   Florence Stanley

   Grandma Ethyl Phillips (voice) (3 Episodes)

9. 

   Richard Portnow

   Mel Luster (voice) (2 Episodes)

10. 

    Sherman Hemsley

    B.P. Richfield (voice) (2 Episodes)

11. 

    Steve Landesberg

    Gary (voice) (1 Episode)

12. 

    Brian Henson

    Arthur Rizzic (voice) (1 Episode)

13. 

    Harold Gould

    Dinosaur Chief (voice) (1 Episode)

14. 

    Perry Anzilotti

    Chang Chang (1 Episode)

15. Jeff Chayette

    Ling Ling (1 Episode)

16. 

    Julie Maddalena

    Caveman's Wife (1 Episode)

Series Crew 21