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.

The Strawberry Blonde is a 1941 American romantic comedy film directed by Raoul Walsh, starring James Cagney and Olivia de Havilland, and featuring Rita Hayworth, Alan Hale, Jack Carson, and George Tobias. Set in New York City around 1900, it features songs of that era such as "The Band Played On", "Bill Bailey", "Meet Me in St. Louis, Louie", "Wait Till The Sun Shines Nellie", and "Love Me and the World Is Mine". It was nominated for an Academy Award in 1941 for Best Scoring of a Musical Picture. The title is most often listed beginning with the word The, but the film's posters and promotional materials called it simply Strawberry Blonde.