The Good Wife Season Finale Preview
05/17/2011 AT 03:45 PM EDT
So how will it all wrap up on Tuesday's second season finale?
"It's a really cool episode," Charles tells PEOPLE. "It felt really good to shoot the last one."
The actor appears throughout the finale, airing on CBS at 10 p.m. ET. "Chris Noth and I will have a really cool scene together," says Charles. "And it was great to do scenes with Titus Welliver. He's been a friend for years and we haven't had anything to do together in the show and we were laughing about that."
Fans will also see Charles, Welliver and Matt Czuchry (who plays Cary Agos) squaring off in the judge's chamber.
"Some of the court stuff, we hadn't shot it this way before," says Charles. "And we have a really long closing argument that we shot in one take. That was really invigorating."
Among the storylines that may not be completely resolved this season? The history between Will Gardner and Blake Calamar (Scott Porter), Kalinda Sharma's rival private investigator.
"I think that's going to push to next year," adds Charles. "It's going to be a fun arc to play."
As for the rest, including Will’s fate with Alicia, "The show takes on a lot of things and there's lots happening in the last episode," Charles says. "It very genius-ly leads us to a place where it will be very clear what the possibilities could be going into next season. That should excite people, or at least get them talking – even if they don't like it!"