Add Yahoo as a preferred source to see more of our stories on Google. Jackie Burkhart was a career-defining role for Mila Kunis, but there's something she finds unnerving about "That '70s Show." ...

(Clockwise from lower left): Ashton Kutcher as Michael Kelso, Danny Masterson as Steven Hyde, Mila Kunis as Jackie Burkhart, Wilmer Valderrama as Fez, Laura Prepon as Donna Pinciotti, and Topher Grace ...