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The adventures of a rhyming canine superhero.




3   2   1  
1967   1966   1965   1964  



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Series cast summary:
George S. Irving ...  Narrator / ... 124 episodes, 1964-1967
Wally Cox ...  Underdog / ... 119 episodes, 1964-1967
Allen Swift Allen Swift ...  Simon Bar-Sinister / ... 114 episodes, 1964-1967
Norma MacMillan Norma MacMillan ...  Sweet Polly Purebred / ... 112 episodes, 1964-1967
Ben Stone Ben Stone ...  Cad / ... 39 episodes, 1964-1967
Delo States Delo States ...  Little Girl / ... 36 episodes, 1964-1967


A shoe shine puppy transforms himself into a superhero every time Sweet Polly Purebread (a pretty TV reporter) gets in trouble. Written by Michel Rudoy <mdrc@hp9000a1.uam.mx>

Plot Summary | Add Synopsis


There's No Need To Fear ...


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Parents Guide:

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Release Date:

3 October 1964 (USA) See more »

Also Known As:

Supercan See more »

Company Credits

Show more on IMDbPro »

Technical Specs

Sound Mix:




Aspect Ratio:

1.33 : 1
See full technical specs »

Did You Know?


The full name of Simon Bar Sinister's henchman is Cad Lackey. See more »


Announcer: [At the end of each show] Looks like this is the end. But don't miss our next Underdog Show.
See more »

Alternate Versions

The series originally aired with a four-part "Underdog" episode running complete in its 30-minute time slot. All current TV prints are a compendium of two related shows, "The Underdog Show" and "Tennessee Tuxedo And His Tales" (but shown under the "Underdog" title), with each of their segments mixed into each 30-minute episode. Some TV prints open with a segment "introducing an exciting scene from today's 4-part episode...", but instead of going into the preview the main credits roll. The end credits use titles from both "Underdog" and "Tennessee Tuxedo" shows. See more »


Referenced in Saturday Night Live: Michael Keaton/Morrissey (1992) See more »

Frequently Asked Questions

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User Reviews

Great series; silliness, lessons to learn
20 May 2002 | by matlock-6See all my reviews

I grew up watching Underdog. Although the series ended in 1973, it continued in reruns for many years after (at least through 1979-1980, when I remember watching it.)

Underdog always spoke in rhymes. Normally, he spent his time as "Shoe Shine Boy", and was just that. But when he took one of his super power pills, he transformed into Underdog and saved his love interest, news reporter Sweet Polly Purebred. His nemesis was usually Simon Bar Sinister (voiced by Allen Swift, who is a true living legend of animation voiceovers).

The storylines were always pretty much the same, but there was usually a lesson to be learned at some point in the show.

It didn't end there, however.

After Underdog had beat up Simon Bar Sinister for the 300th time, the show often segued into "Tennessee Tuxedo", a silly cartoon (also involving lessons learned) starring a penguin as the title character (voiced by Don Adams of "Get Smart" fame), his dimwitted walrus pal Chumley, and Mr. Whoopee, who would give them science lessons with his magic expanding chalkboard.

There were a number of other cartoons that ran along with Underdog, including one about 2 American soldiers in the old west tangling with two Native Americans (who would probably be seen as racially offensive today). I can't recall the others.

It was a great, fun kids show back in its day.

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