By Claire Stern
Apr 10, 2016 @ 9:15 am
John P. Johnson/HBO

In the first episode of Togetherness, HBO's critically-acclaimed series created by Jay and Mark Duplass, Amanda Peet's ballsy character, Tina, toilet papers the house of guy who dumped her via text after she moved to L.A. to be with him. Some might consider the stunt immature, or just plain crazy, but it's Tina's confident, freewheeling spirit that consistently breathes life into each episode and makes a show about the pitfalls of marriage incredibly touching, enjoyable to watch, and, yes, hilarious. Ahead of the series finale tonight (10:30 p.m. ET on HBO), we caught up with Peet to discuss her character, working with the Duplass brothers, and what it's like to walk in heels after pregnancy.

It's not often that we see TV shows capture the gritty truth of adulthood, where female characters grapple with real-life issues, like motherhood and age. What attracted you to the role of Tina?

I like how desperate and uncensored she is. I have a lot of friends who didn't realize they wanted to have kids until much later, and it can be very challenging and very scary, so I completely relate to it.

She's been pretty baby-obsessed this whole season.

She realizes she really wants to find a man—a baby daddy.

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You had a child yourself right before filming season 2. I have to give you props for wearing heels so soon after.

They're lethal! I'm 44 and I have hip problems, so I appreciate you saying that. I consider it a stunt running on the cobblestones in New Orleans in those heels. If they had offered me a stunt double, I would've taken it. Jay and Mark both have young kids, so they understood what it was like for me to be breastfeeding onset and were incredibly considerate. I think with all the talk about rampant sexism going on in Hollywood, it's important to mention that.

John P. Johnson/HBO

It's a tough time for women over 40 to nab leading roles, yet you're still doing it with such success. What's your secret?

I think I've always been willing to read and audition, and the older I got, the more I thought that nothing good ever happened to me personally from playing hard to get. If I did that, people would be like, "Whoa, who does she think she is?" So I just really got in the habit of getting in the room.

How is working with the Duplass brothers?

It's been incredible. They're very collaborative and very trusting, but they're also very opinionated, so it's a strange combination. Sometimes they'll call things out to us when we're in the middle of a scene, and they'll ask us to try things right there and then in the moment. They really like to defy your expectations.

RELATED: Amanda Peet's Changing Looks

You recently told SiriusXM's "Conversations with Maria Menounos" that you've never gotten Botox or fillers. Was that a conscious decision?

It's just not for me. But I understand why people want to do it, and I even want to do it sometimes. I really can't stand my wrinkles, but I'm trying to embrace it.

Watch the trailer for Togetherness below, and tune in to the series finale tonight at 10:30 p.m. ET on HBO.

This interview has been edited and condensed for clarity.