Underdog

March of the Monsters (Season 1, Episode 2)

TV Episode | 5 min | Animation, Action, Adventure

An army of huge mechanical monsters invades the city and capture Polly Purebred.

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Release date

Oct 3, 1964 (United States)

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Cast	+ Add Cast
4 cast members

Name	Known for
Wally Cox Underdog (voice) Underdog (voice) See fewer	Mister Peepers (1952)
George S. Irving Narrator / Townspeople (voice) Narrator / Townspeople (voice) See fewer	The Year Without a Santa Claus (1974)
Norma MacMillan Sweet Polly Purebred (voice) Sweet Polly Purebred (voice) See fewer	Underdog (1964)
Allen Swift Monster Scientist (voice) Monster Scientist (voice) See fewer	Mad Monster Party? (1967)