PEOPLE Magazine 40th Anniversary

Hollywood Family Flashbacks

Miley and Billy Ray! Allison and Brian! These famous kids learned from the best

BRIAN & ALLISON WILLIAMS

Ten years since walking the Anchorman red carpet with her NBC newsman dad Brian in 2004, Allison, 26, has made a name for herself on the HBO series Girls. And soon the two will share more than a last name: She'll join his network for a night, starring in December's Peter Pan Live!