John Elmer Carson, known as Jack Carson, was a Canadian-born American film actor. Carson often played the role of comedic friend in films of the 1940s and 1950s, including The Strawberry Blonde (1941) with James Cagney and Arsenic and Old Lace (1944) with Cary Grant. He appeared in such dramas as Mildred Pierce (1945), A Star Is Born (1954), and Cat on a Hot Tin Roof (1958). He worked for RKO and MGM, but most of his notable work was for Warner Bros.

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