By Esther Zuckerman
September 03, 2014 at 02:14 PM EDT
Nino Munoz/NBC

Some might say that Allison Williams’s character on Girls has a case of arrested development, but Williams quite literally won’t grow up in the first image from NBC’s Peter Pan Live!. Williams is starring as the titular character in the live production of the 1954 musical airing Dec. 4, and here she appears perched on a ship’s mast all ready to go thanks to some spandex, some mesh, and a wig. No, Williams didn’t get a pixie cut for the part. She wrote on Instagram: “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.”

Williams’s Peter has a slightly trendier look—what with her boots that many of us would totally wear in real life—than previous notable Pans, though she stacks up pretty well against Cathy Rigby, Sandy Duncan, and, of course, Mary Martin, who was a veteran of NBC’s historical live Peter Pan ventures.

Last year, NBC hit the proverbial ratings jackpot with their live production of The Sound of Music starring Carrie Underwood. But with Peter Pan, they add an extra hazard: flying. Williams has already taken to social media to chronicle her airborne training.