Come on, Freddie Mercury was openly and proudly bi/gay. David Bowie claimed to have been bi and then denied it later in life so I think he was probably straight or mostly straight. Maybe this is jist me but Bowie only seemed to perform queerness in a shallow way to get famous, and left it all behind when he had made his money. Whereas real queer men like Freddie had relationships with other gays, spoke out against homophobia and went against gender norms even when the cameras and spotlights were off.
Anyway, I've heard rumors that Tom Cruise was known in the gay scene before he got famous.
Isn't there a picture of Mike Pence at a Pride event when he was younger? He seems pretty closeted like a lot of homophobic politicians.
Unfortunately I bet there are a lot of closeted men in professional sports, because there are so few out athletes and statistically, it just seems improbable that there would be less gay men in sports than in other parts of society.
Also, Nick Jonas has always seemed closeted to me, but maybe thats wishful thinking on my part.