Cristin Milioti Talks HOW I MET YOUR MOTHER

In her first interview since being cast as the mysterious woman who will eventually become Ted's wife on CBS's HOW I MET YOUR MOTHER, Broadway vet Cristin Milioti spoke with Entertainment Weekly about joining the cast of the hit comedy.

The last season of the series ended with a bona fide cliffhanger as viewers got a quick glimpse of Milioti in a train station in the episode's final scene. EW was on the set when the 27-year-old began filming her first scenes for the upcoming ninth season.

The actress who portrayed 'Girl' in the Tony-winning musical 'Once,' spoke about the audition process which led to her casting on the comedy. "I received a phone call from my agents, and they said, "'How I Met Your Mother' would like to interview you for a possible character arc," and I asked, "What's the character?" And they said, "We don't know."

She continues, "So I had a Skype meeting with [creators] Craig [Thomas] and Carter [Bays], and we talked maybe for a half hour. I told them about "Once," and a few days later they sent people to the show. Then I was told that I was going to fly to L.A. to test for this role, but I still had no idea what it was. They were so secretive, so I had my suspicions. The day I shot [my first scene], it was really on lockdown. All the extras in that train station are producers and writers of the show. It was so beautiful, because I got to meet everyone and they were incredibly welcoming."

Of course, fans of the show are most curious about what this mysterious future wife of Ted's is like. "She has a unique sense of humor that is very similar to Ted's, shares Milioti. "She's a young woman who suffers from dad humor ... that's how she rolls. Someone who says a joke and you're immediately like, "Daaaadd!" Corny isn't even the word - a little nerdy."

The multi-talented actress revealed that she her stage career began at a very young age. "Before middle school, my parents had sent me to this, like, really hippie Summer Camp called Long Lake that was all about "Do you want batik? Or do you want to make candles?" I met this girl from Venezuela who buzzed her head. She was, like, 16 and beautiful, and I was 12 with a mustache and unibrow, pretty serious orthodontic problems. So I went home, and the day before my first day at this huge New Jersey public middle school, I shaved my head and came in with a unibrow and mustache and my dad's T-shirt that said "Don't Mess With Texas." Basically, from then on, the only kids that were nice to me were the theater kids"

Read the interview in full here!

The new season of "HIMYM" premieres on CBS on September 23. Get a sneak peek here!

Cristin Milioti recently concluded her star turn as "Girl" in the Broadway SMASH hit musical "Once," for which she received a Grammy Award as well as a Tony Award nomination for Lead Actress. Milioti will soon be seen playing opposite Leonardo DiCaprio in the upcoming Martin Scorsese feature film, "The Wolf of Wall Street," due out later this year. Her previous television credits include "30 Rock," "The Sopranos," "The Good Wife" and "Nurse Jackie."