They are literally hair twins.
This is Allison Williams as Peter Pan, rocking the hell out of the pixie cut:
NBC
And this is her dad, NBC Nightly News anchor Brian Williams...
NBC
...who, in high school, ALSO TOTALLY rocked the hell out of the pixie cut.
Classmates.com / Via classmates.com
Seriously, Allison Williams as a boy looks hilariously similar to teenage Brian Williams. They are basically hair twins.
Kristin Chirico / BuzzFeed / Via classmates.com / NBC
