Kevin also did a Fancast interview and talked about Grey's and the upcoming Percy Jackson movie. An excerpt from the interview is below:
Tell me about your role in the ‘Percy Jackson and the Olympians: The Lightning Thief’ (hitting theaters February 12).
I play Poseidon, the god of the sea. It’s a not a huge role, but I am Percy Jackson’s father. It’s a crazy fantasy/kids/action film that Christopher Columbus directed. I get to play an almost Obi-Wan Kenobi character.
What kind of costume do they have you in?
Well, there are two: There’s the period god costume with the breastplates and leather….
… and trident.
That’s right! And at the end of the movie, I’m walking around Manhattan as “civilian” Poseidon. That’s much more of a pea coat, fisherman-type look.
You can also check out some new posters and stills from Percy Jackson over at FilmShaft. None of them feature Kevin, but they're pretty cool.