As much as many might see acting as a dream job, it is still a job at the end of the day, and not every role an actor takes is going to be a fun day at the office.
Sometimes actors take blatant paycheck roles, and sometimes they agree to inhabit a character who they actually can't stand - to suffer for their art in the hope that they can bring an entertaining or truthful portrayal to the big screen.
And while actors tend to be relatively diplomatic when talking about their own work, some are at least honest enough to admit when they thoroughly loathed the person they were playing.
These 10 actors, for instance, all confessed to harbouring a patent dislike for some of their most iconic and beloved characters, whether because they were an uninteresting part, were totally unlike themselves in real life, or were just a detestable person to spend a few months playing.
These actors couldn't have been more relieved to hang these roles up when shooting wrapped, no matter how critically acclaimed their work may have ultimately turned out...
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.