|The Edge of Night character|
|Portrayed by||John Larkin (April 1956 to October 1961)
Laurence Hugo (November 1961 to June 1, 1971)
Forrest Compton (June 2, 1971 to December 28, 1984)
|First appearance||April 2, 1956|
|Last appearance||December 28, 1984|
Assistant District Attorney
Attorney in private practice
A tireless crime-fighter, Karr was introduced as a cop finishing law school. This character evolved from the earlier Perry Mason character on radio. He then progressed to the District Attorney's office as an ADA, hung his own shingle as a defense attorney for several years, then became DA of Monticello. 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.