Dwayne Johnson is not gay. Vin Diesel not gay, but under a 3 day coke binge you kind of loose count, or so the story goes from last year. Present entertainment talk is that Wil Smith is bi.....rumored that back in his Philly days. His wife Jade almost pulled the plug (so to speak) on his other sexual habit and was ready to split from the marriage. But than again, money and power can keep any Hollywood marriage together. Just look at the John Travolta (biggest flamer of all) marriage or Tom Cruise for that matter. (just to note: Wil Smiths kids are unbelievably spoiled to the max)
Sorry to disappoint some posters here, but not all male Hollywood/TV actors do the gay thing. But a lot of the female actresses may be inclined to do so. A few studio heads enjoy the best of both worlds, it seems.