(Cover) - EN Showbiz - January Jones finds playing a villain a huge responsibility.

The blonde beauty stars as the superficial and mean Betty Draper in American show Mad Men. She has also taken on the role of diabolical mutant Emma Frost, who can turn herself into a diamond, in her latest movie X-Men: First Class. The actress loves challenging roles and doesnt judge the bad characters she portrays or take playing them lightly.

Its a huge responsibility. And Im a villain. As Emma Frost Im telepathic, and I can turn into a diamond, which means Im very, very cold. I always wear white: lots of iridescent stretch leather, lots of sparkle, and ass-kicking white boots, she told W magazine.

Emma Frost was not in the earlier X-Men movies, so I wanted to make her true to the way she is in the comic books. Im one of the most powerful mutants. Its fun to imagine what life would be like as a diamond.

Despite her penchant for playing edgy roles, January insists she doesnt agree with all of her characters actions.

The 33-year-old added she thinks audiences love a bad girl.

I dont judge Betty or necessarily understand her. The audience is passionate about her. After season one they wanted her to speak out against Don and his infidelities. Then in season two, when she did, there was a huge reaction against Betty. They want her to talkjust not too much, she said. (C) Cover Media