Yes, the former Saturday Night Live cast member is alive and working. For those who don't watch TV sitcoms, he's actually been a regular cast member of ABC's The Middle since last September. But he also continues to appear in many features, just few that you've likely heard of, such as last year's Scout's Honor (tagline: "Badge to the Bone"). In GG&G, his role sounds relatively small: he's only described as "Gay Elvis," and we're reminded that there are a "slew" of these impersonators, of which Slater and Oldman are two more.
Kattan's incarnation sounds like a rejected SNL character, an obvious one at that (remember he also did "Gay Hitler"). Will Horatio Sanz also join the cast as "Fat Elvis," and Jim Breuer as "Stoned Elvis"? At least his involvement makes Dane Cook -- who plays a sheriff -- seem more fitting with the ensemble, which also includes Megan Park and now Helena Mattsson (Iron Man 2) as Annabel, a 6-foot-tall hitwoman described as being "educated, ice cold and lethal."
I'm still dying to see Oldman, who's played Sid Vicious and Ludwig van Beethoven, and who has done a bit of singing on screen and off, ham it up as the "mega-contender" in the film's Elvis impersonation contest, but I also hope the casting doesn't keep going too far south in the way of talent. What about you, are you still interested in Guns, Girls and Gambling?