Karl Swenson (July 23, 1908 – October 8, 1978) was an American theatre, radio, film, and television actor. Early in his career, he was credited as Peter Wayne. Swenson appeared on the radio from the 1930s through the 1950s in such programs as Cavalcade of America, The Chase, Columbia Presents Corwin, The Columbia Workshop, Inner Sanctum Mysteries, Joe Palooka, Lawyer Q, X Minus One, Lorenzo Jones, The March of Time, The Mercury Theatre on the Air, Mrs. Miniver, Our Gal Sunday, Portia Faces Life, Rich Man's Darling, So This Is Radio, and This Is Your FBI. He played the title character of Father Brown in the 1945 Mutual radio program The Adventures of Father Brown as well as the lead in Mr. Chameleon.

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