Voted by members of the actors guild
The award is called "The Actor"
(a little unimaginative, don't you think? also redundant if you say "The Actor for Male actor goes to actor.. ")
Motion Pictures
Ensemble Cast in a Motion Picture: Inglourious Basterds
Male Actor, Leading Role: Jeff Bridges (Crazy Heart)
Female Actor, Leading Role: Sandra Bullock (The Blind Side)
Male Actor, Supporting Role: Christoph Waltz (Inglourious Basterds)
Female Actor, Supporting Role: Mo'Nique (Precious)
Stunt Ensemble in a Motion Picture: Star Trek
[Jeff Bridges also won the Golden Globe so he likely has a good chance for an Oscar; the same for Sandra Bullock, Christoph Waltz, and Mo'Nique]
Television
Ensemble Cast in Television, Drama: Mad Man
Ensemble Cast in Television, Comedy: Glee
Male Actor in a Drama Series: Michael C. Hall (Dexter)
Female Actor in a Drama Series: Juliana Margulies (The Good Wife)
Male Actor in a Comedy Series: Alec Baldwin (30 Rock)
Female Actor in a Comedy Series: Tina Fey (30 Rock)
Male Actor in a TV Movie or Miniseries: Kevin Bacon (Taking Chance)
Female Actor in a TV Movie or Miniseries: Drew Barrymore (Grey Gardens)
Stunt Ensemble in a TV Series: 24
[Michael C. Hall's award for Dexter was long overdue, in my opinion. Has Alec Baldwin lost any award for his hilarious comedic role in 30 Rock? Tina Fey doesn't really act, so I think her award is more for writing and creating the show. Drew Barrymore said "ummm" about 20 times and should have been better prepared, as she also won the Golden Globe.
Mad Men has won every single award it could in it's two years on the air. "Mad Men" is the slang for "Madison Ave admen", and is about the lush post-war era in the U.S. when everything was large and glamourous, and everyone drank and smoke, even on the job. The show perfectly captures a long gone era when we seemed to have few problems other than romantic ones.]
The official SAG website list of nominations and winners