Elroy Jetson invents a time machine that takes him back to prehistoric times, where he meets the Flintstone family.
|Daws Butler||Elroy Jetson / Cogswell / Henry Orbit (voice)|
|Don Messick||Astro / R.U.D.I / Mac / Announcer / Store Manager / Robot (voice)|
|Henry Corden||Fred Flintstone / Knight (voice)|
|Jon 'Bowzer' Bauman||Iggy (as Jon Bauman) (voice)|
|Hamilton Camp||Turk Tarpit (voice)|
|Julie McWhirter||Betty Rubble / Jet Rivers / Investor / Panelist / Harem Girl (as Julie Dees) (voice)|
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