who all played mike karr on the edge of night
Karr was played by three actors: John Larkin (radio's Perry Mason) from the show's debut in April 1956 to October 1961, Laurence Hugo from November 1961 to June 1, 1971, then Forrest Compton from June 2, 1971 until the show ended on December 28, 1984. Mike Karr was the only character on The Edge of Night to last the entire run of the series. Mike appeared in both the premiere episode April 2, 1956, and the final telecast on December 28, 1984. Lackmann, Ronald W. (2000). The encyclopedia of American radio: an A-Z guide to radio from Jack Benny to Howard Stern.