A bowling ball falls on Fred's head and Barney takes him to a doctor. However, this Dr. Frankenstone has a machine that can switch personalities and he's looking for a human guinea pig.

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Episode credited cast:
Fred Flintstone (voice)
Barney Rubble / Dino / Guy #2 / Bat (voice)
Jean Vander Pyl ...
Wilma Flintstone / Pebbles Flintstone (voice) (as Jean Vanderpyl)
Gerry Johnson ...
Betty Rubble (voice)
Rest of cast listed alphabetically:
Len Frankenstone (voice)
Don Messick ...
Bamm-Bamm Rubble / Hoppy / Turtle / Cat / Barking (voice)
Doc (voice)
Doug Young ...
Dracuslab / Guy #1 / Dr. Zero / Pterodactyl (voice)


Bowling in alley 13, Fred is beaned by a bowling ball and suffers amnesia. But the doctor to whom Barney takes his friend is no ordinary family physician. He's conducting experiments in the switching of personalities, and Fred strikes him as the ideal test subject. Written by Morganalee

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Release Date:

24 September 1964 (USA)  »

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Technical Specs


Sound Mix:


Aspect Ratio:

1.33 : 1
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User Reviews

Monster Fred
25 October 2015 | by (India) – See all my reviews

The Flintstones is an animated, prime-time American television sitcom that was broadcast from September 30, 1960 to April 1, 1966, on ABC. The show, produced by Hanna-Barbera, fancifully depicted the lives of a working-class Stone Age man, his family, and his next-door neighbor and best friend.

The show's continuing popularity rested heavily on its juxtaposition of modern everyday concerns in the Stone Age setting. The Flintstones was the most financially successful network animated franchise for three decades, until The Simpsons debuted. In 2013, TV Guide ranked The Flintstones the second Greatest TV Cartoon of All Time (after The Simpsons).

Fred's personality becomes that of a little child after getting hit on the head with a bowling ball. After looking for a doctor, Barney finds a mad scientist (and his associate, caricatures of "Dr. Ben Casey" and "Dr. Zorba") that uses electric shock to swap personalities, involving Betty, Wilma, and even Dino. Notes: This episode is slightly based on episode 5, "The Split Personality".

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