The actor who play Scotty(Luke Macfarlane) is gay in real life. Jason (Eric Winter) is not gay in the real life, and Kevin (Matthew Rhys) I really don't know, sorry!

i didn't know that luke mcfarlene was gay. he is too hot to be gay

The only one I know for sure is Luke Macfarlane (Scotty).I do not THINK Matthew Rhys (Kevin) is gay in real life and Ron Rifkin (Saul) is married to a woman named Iva.