Salvatore Mineo Jr. was an American film and theater actor who is best known for his role as Plato in Rebel Without a Cause (1955).
In 1957, Mineo made a brief foray into pop music by recording an album comprised of a handful of songs. Two of his singles reached the Top 40 in the United States' Billboard Hot 100.
He was surprisingly open about his sexuality throughout his life, directing and starring in the play Fortune and Men's Eyes in 1967, The play is about homosexuality and sexual slavery in prison.
He went on to play a bi character in the play P.S. Your Cat is Dead in 1976.
He was tragically murdered in an alley behind his apartment in 1976 by a man who had confessed to ten robberies in the same area. The murderer claims to have had no idea who it was that he stabbed.
In a 1972 interview with Boze Hadleigh, Mineo talked a lot about his opinions about human sexuality and his own bisexuality.[1]
Do I think everyone's bi? Yeah. . . if they'd be honest about it.