Elroy Jetson invents a time machine that takes him back to prehistoric times, where he meets the Flintstone family.
Barney Rubble / Dino / Mr. Spacely (voice)
Elroy Jetson / W.C. Cogswell / Henry Orbit (voice)
Astro / R.U.D.I / Mac / Announcer / Store Manager / Robot (voice)
Fred Flintstone / Knight (voice)
Iggy (voice)
Turk Tarpit (voice)
Betty Rubble / Jet Rivers / Investor / Panelist / Harem Girl (as Julie Dees) (voice)
George Jetson (voice)
Jane Jetson (voice)
Mr. Slate / Moderator / Investor / Poker Player (voice)
Didi (voice)
Wilma Flintstone / Rosie / Mrs. Spacely (voice)
Judy Jetson / Female Computer (voice)
Dan Rathmoon / Johnny / Mr. Goldbrick (voice)
(voice)
