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Leonarde Keeler

Leonarde Keeler is an actor, known for Call Northside 777 (1948). See full bio »

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Known For

Call Northside 777
Call Northside 777 Leonarde Keeler - Polygraph Examiner


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 1948 Call Northside 777
Leonarde Keeler - Polygraph Examiner (uncredited)

Did You Know?


Inventor of the polygraph, he insisted on playing the examiner in the movie "Call Northside 777" because he was sure that no actor could learn to use the machine properly.

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