12. Megan Fox – Mikaela Banes

Megan Fox gained international attention as Mikaela Banes in the first two Transformers films, but her experience on set was fraught with tension. Fox publicly criticized director Michael Bay, comparing his behavior to that of a dictator, which led to her being dropped from the franchise. The acrimonious fallout made it clear she would never reprise the role. Fox has since spoken about her discomfort and regret over the experience. For more on her perspective and the controversy, see this Guardian article.