Katherine Heigl

Grey’s Anatomy alumnus, Katherine Heigl has had an infamous reputation in Hollywood as being notoriously difficult to work with. That fact didn’t stop showrunners from paying her $30 million per season on the hit medical drama, though.

It was through Grey’s Anatomy that Heigl made her mark and was able to land roles in any number of feature films, including the iconic comedy, Knocked Up. Soon enough, all her offers for starring roles conflicted with her demanding schedule on the show, so she had no choice but to leave the hospital drama behind.