Jack Cassidy (March 5, 1927 – December 12, 1976) was an actor who portrayed the killer on Columbo three times. He first appeared in the debut episode Murder by the Book, directed by Steven Spielberg in 1971 as Ken Franklin. He later appeared as Riley Greenleaf in the 1974 episode Publish or Perish before making one last Columbo appearance as The Great Santini in 1976's Now You See Him. He died in December of that year in a fire he accidentally started at his West Hollywood apartment by falling asleep while smoking a cigarette.