10 Actors Who Hated Their Own Movie Characters

10. Katherine Heigl - Alison Scott (Knocked Up)

Though Katherine Heigl was already well known at the time for playing Izzie Stevens in Grey's Anatomy, in 2007 she enjoyed a major career breakthrough by starring opposite Seth Rogen in the comedy mega-hit Knocked Up.

Heigl played Alison Scott, a workaholic reporter who ends up getting unintentionally pregnant by Rogen's schlub Ben Stone, and despite some understandable turmoil, they end up raising the baby together as a happy couple.

Shortly after release, Heigl spoke out about the movie, noting that while she enjoyed working with Rogen and writer-director Judd Apatow, she considered the film "a little sexist," adding, "It paints the women as shrews, as humorless and uptight, and it paints the men as lovable, goofy, fun-loving guys."

Most damningly, she had some specific, choice words about the very character she played:

"I'm playing such a bitch; why is she being such a killjoy? Why is this how you're portraying women?"

Though it's clear that Heigl mostly had a problem with the angle of the script more than anything, this clearly fed down into her "bitch" character.