John Renwick
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Col. John "Renny" Renwick is a fictional associate of 1930s and 1940s pulp hero Doc Savage. Renny was a civil engineer who first met Doc Savage during World War I. A physically massive man, Renny was almost as big as Doc himself, which would make him over six and a half feet tall. Renny had enormous fists, and his favorite hobby was punching through thick wooden doors. He always looked miserable when he was happiest. His favorite expression was "Holy Cow"!
Renny was absent during some of Doc's adventures, his work carrying him to other parts of the world.
In the 1975 film Doc Savage: The Man of Bronze, he was played by William Lucking.