Allison Williams Plays Peter Pan in NBC’s Next Live Theater Show

Girls star becomes the boy who never grows up

Allison Williams has traded in the long tresses and glam style she flaunts on HBO’s Girls for the boyish charm of Peter Pan, NBC’s second installment of live TV theater, and today we have evidence to prove it.

The television network released photos of Williams today in the title role of the boy who flies and never grows up. Peter Pan Live! will air Dec. 4, a year after a live broadcast of The Sound of Music, which starred Carrie Underwood in the title role and drew 19 million viewers.

Live events are a staple of TV marketing in the contemporary ad world as more viewers express a preference for DVRed or over-the-top content. NBC hopes viewers will watch as the drama unfolds on "stage," which they did last year to great effect for the network.

Williams, the daughter of NBC Nightly News anchor Brian Williams, will appear opposite stage veteran Christopher Walken as Captain Hook in the live telecast. Before Girls, Williams appeared in the Fox comedy, The Mindy Project. She also has sung on Girls and recorded several songs for the show’s soundtrack, according to Today.

Over the past month, since her role became public, Williams has taken to social media to share her training and reflections on playing the boy-dreamer.

It was a goal she set for herself when she was three, NBC reported, and apparently, Williams can prove it. On July 30, she posted a photo of herself as a child in full Peter Pan green, explaining: "Thrilled to be playing Peter Pan live on NBC in December. I've been rehearsing for a REALLY long time."

And on Instagram today, she included the photo and some commentary, too: