Really only Mila Kunis and Ashton Kutcher are "big" movie stars.
Laura Prepon has some roles, and plays the main in Orange is the New Black, Wilmer Valderama used to have some gigs, but I haven't seen him in a long time, same with Topher Grace. Danny Masterson? I can't even name something with him in a big(ger) role.
Funny how the two "idiot" characters end up the most famous.