Allison Williams Will Play Peter Pan in NBC's Live Broadcast Performance!

Allison Williams has joined the cast of NBC's Peter Pan Live. She's set to play Peter Pan, the boy who never grew up!

"I have wanted to play Peter Pan since I was about three-years-old, so this is a dream come true," said Williams, Entertainment Weekly reports.

She will be working with Christopher Walken, who was announced a couple of weeks ago, as the notorious Captain Hook.

"It's a chance to put on my tap shoes again," Walken told the Hollywood Reporter, sharing his excitement for the upcoming performance.

The children's classic was an NBC musical live broadcast in 1954, and more than 65 million viewers experienced the debut, according to the Hollywood Reporter.

Last year's Sound of Music Live broadcast starring Carrie Underwood as Maria von Trapp drew in 18.6 million viewers with mixed reviews on her rendition.

There's a bit of pressure for the Girls star, who has shared her talented voice occasionally on the show and in the viral "Mad Men Theme Song...With a Twist" video, reports E! News today.

But wait...Peter Pan isn't a girl?  

The tradition of having a woman play Peter Pan began in the early 20^th century. If a boy were cast as Peter Pan he would be around the same height as the Lost Boys, which was deemed weird since he is supposed to be the leader of the pack. Plus, it was illegal for children to be on the stage after 9 pm, which doesn't work out for a starring role according to Slate.

With the villain and hero cast, the search for the rest of Neverland continues for the holiday production. Peter Pan Live will debut on December 4, where all we need is just a little bit of pixie dust!