There's a shakeup at the firm in season two, with the arrival of Daniel Hardman (David Costabile). How does he affect things?
"Hardman's a fellow that we'll learn is very difficult to trust. He comes off as a guy who has a past, but tries to reveal that he's a changed man, and you want to believe him, and I think everyone sort of does believe him except for Harvey. Harvey makes his own plays here and there that disrupt this change in Hardman, and Hardman resorts to his true colours, which creates a lot of challenges."
What else is coming up for Harvey in season two?
"One of his old co-workers comes back into his life. He sort of fell for this woman and she comes back and they have a few episodes together, where she really brings out his vulnerability and confronts him, and so we get to see how that affects him. Is that a strength or a weakness for him? And the really good thing about that was the woman who played that role was my wife, Jacinda Barrett, so it was a lot of fun to work with her."
Harvey's relationship with Mike is the heart of the show - how does that develop in season two?
"It just gets deeper. There are times when Mike pulls through for Harvey, and he's on his good side, and there are times when he's still just a young kid trying to figure out his way, and makes colossal mistakes, and is basically a punk, and Harvey just has to get him straight. The problem is, Harvey sees so much of himself in Mike, and that's how he can continue to keep him on board. Plus, he knows he's got this kid that can do all his work for him!"
There was a hint at the end of season one that there might be some complexity to Harvey and Donna's relationship. Do you see a romance for those two being on the cards?
"You know, I think the two of them have a dynamic relationship. They started out together, and there could have been potentially a night where there was a miss-communication. I don't see them as a romantic coupling, but there may have been some feelings that were not responded in certain ways. More importantly, we're going to learn pretty soon that Donna makes a massive mistake, and it really puts Harvey's job in jeopardy, and as much as he doesn't want to take her out of the picture, he might have to. There's a great story arc with her, she has so much more to do this season - Sarah was completely on top of her game, and there's a lot of great stuff in episodes four through to seven. It really gets heated."