09/03/2014 AT 10:45 AM EDT
It certainly looks as if Allison Williams
is ready to fly
in the role of Peter Pan.
star, who was recently cast as Peter in NBC's Peter Pan Live!
alongside Christopher Walken as Captain Hook
, shared a first photo of herself Wednesday as the boy who wouldn't grow up.
"The transformation begins!" Williams, 26, wrote alongside the Instagram picture
. "My first shoot as Pan."
Continued the actress: "Fun fact: I was all ready to cut my hair, then was told by the folks who actually know what they're doing that a wig works better for everybody. So, December 4th, here we come. #wiglife #peterpanlive #nbc"
Williams recently shared another adorable Instagram photo
, this one of her from childhood dressed up all in green as – you guessed it – Peter Pan.
"I have wanted to play Peter Pan since I was about 3 years old, so this is a dream come true," Williams stated at the time.
Live TV shouldn't be an issue for Williams, who is the daughter of NBC Nightly News
anchorman Brian Williams