James Tupper James Tupper

Last week's Mercy ended with Mike figuring out his wife Veronica had an affair in Iraq. So, how is Mike going to fare this week now that he's digested the news of her infidelity?

NBC picks up Community, Mercy and Parks and Recreation

"It comes to violence [between Mike and Sands]," James Tupper, who plays Dr. Sands on the medical drama, tells TVGuide.com. "Very full-on, direct, action-movie violence. I felt like an action hero for the day of shooting!"

Watch free, full episodes of Mercy

Though it's hard to say why Sands has had such a hard time letting Veronica go despite her ambivalence, Tupper feels a lot of it has to do with them sharing something in Iraq. "I think being close to her is necessary for his recovery from the experience," says Tupper.

While the freshman series has aired only its first six episodes, last week alone, Elisabeth Moss, Jerry Stiller and Anne Meara appeared as guest stars. Tupper also discussed an upcoming appearance by his Men In Trees co-star and mother of his child, Anne Heche.

Anne Heche and James Tupper welcome baby boy

"Her character hasn't been determined yet, but she'll be written into a future story," says Tupper. "She really wants to be a part of it. It's very exciting."

Even The Real Housewives of New Jersey's Teresa Giudice and Jacqueline Laurita are scheduled to make an appearance at the series' local Jersey bar. 

Real Housewives of New Jersey stars to guest on Mercy

"The Jersey housewives don't have a big acting part like with a monologue or having to cry or anything, but they're there to create the world for us in the bar, and it's hilarious and fun," says Tupper.

Will a table get flung? "Funny you should ask that," laughs Tupper. We'll take that as a yes.