Emerging from the American stage scene in the late 1910s, Paul Kelly honed his craft as a leading man on Broadway before transitioning to screen work, amassing more than four hundred roles across theater, film, and television. After a 1927 manslaughter conviction and a 25-month stint at San Quentin, he returned to acting, debuting in talkies with the 1933 film Broadway Through a Keyhole. His stage…