• MILA & SARAH photo | Mila Kunis, Sarah Hyland

Credit: FameFlynet; Giulio Marcocchi/StarTraks

Published: Thursday January 22, 2015 16:00 PM EST

2015

MILA & SARAH

Because of that seven-year age difference, Kunis really could be Hyland's big sister – which helped when the Modern Family actress dressed up as Kunis's That '70s Show character, Jackie Burkhart, for Halloween in 2010. "People say I look like Mila," she told Cambio. "I've always wanted to be Jackie for Halloween, so [I] just did it."