Gregory Harrison (born May 31, 1950 in Avalon, Catalina Island, California) is a television actor. He is probably best known for his starring role as Gonzo Gates on the CBS series Trapper John, M.D.. He was also the title character on the sci-fi series Logan's Run.
Harrison's later role as stripper John Phillips in the 1981 TV movie For Ladies Only made him a favorite with women and gay men in the 1980s. Harrison was a regular in the final season (1989-90) of Falcon Crest.
Harrison recently starred in the WB Network's Safe Harbor and has made guest appearances on numerous other shows such as Touched by an Angel, Judging Amy, and Reunion.