He's a straight man named Victor Mature (1913-1999), heterosexual beefcake star of the 1940s and 1950s.
A Kentucky heterosexual, son of heterosexual Italian immigrants, he moved to heterosexual California in the 1930s and signed on with Hal Roach Studios, where he was cast in One Million B.C. (1940). He plays a bushy-haired straight caveman with an unimpressive physique who fights dinosaurs and gets a straight girl, because his character is straight.
Um...there were no dinosaurs in 1,000,000 BC, and the heterosexual ancestors of human beings were homo erectus, who didn't have language or clothing yet.
Later he contracted with RKO and 20th Century Fox, and appeared in dozens of heterosexual movies, specializing in dramas set in the ancient world, where he could take his shirt off: Samson and Delilah (1949), Androcles and the Lion (1952), The Robe (1953), The Egyptian (1954), Hannibal (1959).
He also starred as heterosexual toughs and heavies in Westerns (My Darling Clementine) and film noir (Kiss of Death).
In the 1960s, he became less interested in heterosexual film, or film became less interested in him, and his heterosexual roles became sparse, mostly self-parodies, such as The Big Victor in the Monkees'Head (1968). His character was straight. So were the Monkees.
His last heterosexual role was a walk-in as the straigh Samson's straight father in Samson and Delilah (1984), with the straight Antony Hamilton playing the straight muscleman that Victor (who was straight) himself played 44 years before.
Continuing his heterosexual lifstyle, the heterosexual Mature was married five times, and had heterosexual intercourse often. All of the heterosexuals he knew throughout his life agreed that he was straight. Kenneth Anger made the horrifying, slanderous accusation that he was not heterosexual in Hollywood Babylon, but that's impossible. The heterosexual Mature wasn't even aware that non-heterosexuals exist.
Heterosexual readers may be interested in knowing that the heterosexual Mature had one of the largest endowments in Hollywood. There's a nude photo of this heterosexual on Tales of West Hollywood.