Golden Age Starman (Ted Knight- Adventure Comics #61, April 1941)
"Starman" of 1950's (Bruce Wayne in 1957; later changed to Charles McNider)
Mikaal (Michael) Thomas (1st Issue Special #12, March 1976)
Prince Gavyn (Adventure Comics #467, January 1980)
Will Payton (Starman #1, October 1988)
David Knight (older son of Ted Knight; Starman #26, September 1990)
Jack Knight (younger son of Ted / brother of David; Zero Hour: Crisis in Time #1, September 1994)
Thom Kallor/Danny Blaine (Star Boy from LSH / also connected with the character in Kingdom Come)
Farris Knight (Starman of the 853rd century; JLA #23, October 1998)
Other (please specify in a separate post)