Top Billed Cast

1. 

   Mel Blanc

   Barney Rubble / Dino / Mr. Spacely (voice)

2. 

   Daws Butler

   Elroy Jetson / W.C. Cogswell / Henry Orbit (voice)

3. 

   Don Messick

   Astro / R.U.D.I / Mac / Announcer / Store Manager / Robot (voice)

4. 

   Henry Corden

   Fred Flintstone / Knight (voice)

5. 

   Jon Bauman

   Iggy (voice)

6. 

   Hamilton Camp

   Turk Tarpit (voice)

7. 

   Julie McWhirter

   Betty Rubble / Jet Rivers / Investor / Panelist / Harem Girl (as Julie Dees) (voice)

8. 

   George O'Hanlon

   George Jetson (voice)

9. 

   Penny Singleton

   Jane Jetson (voice)

10. 

    John Stephenson

    Mr. Slate / Moderator / Investor / Poker Player (voice)

11. 

    Brenda Vaccaro

    Didi (voice)

12. 

    Jean Vander Pyl

    Wilma Flintstone / Rosie / Mrs. Spacely (voice)

13. 

    Janet Waldo

    Judy Jetson / Female Computer (voice)

14. 

    Frank Welker

    Dan Rathmoon / Johnny / Mr. Goldbrick (voice)

15. 

    Patric Zimmerman

    (voice)