Girls' Alison Williams to play Peter Pan in musical

Christopher Walken will play Captain Hook in the televised production

(Getty)

Alison Williams is going from Girls to immortal swashbuckling boys, playing Peter Pan in NBC musical Peter Pan Live! which will be televised in the US on 4 December.

Williams will star opposite Christopher Walken, and bring a "boyish vulnerability" to the part.

"We couldn’t be happier that Allison Williams is our Peter Pan," said Robert Greenblatt, Chairman, NBC Entertainment. "She’s a lovely rising star on the award-winning show ‘Girls’ — where she occasionally shows off her incredible vocal talent — and we think she will bring the perfect blend of ‘boyish’ vulnerability and bravado to save the day against Christopher Walken’s powerful Captain Hook."

"Allison Williams is a major find," executive producers Craig Zadan and Neil Meron added. "She will reinvent the iconic role of Peter Pan with her wit, her warmth, her dynamic flying and her wonderful musical abilities. The score will be sung beautifully and introduced to a whole new generation of families."

Williams described the casting as a "dream come true".

"I have wanted to play Peter Pan since I was about three years old, so this is a dream come true," she said. "It’s such an honor to be a part of this adventure, and I’m very excited to get to work with this extraordinarily talented team.

"And besides, what could go wrong in a live televised production with simultaneous flying, sword fighting and singing?"