‘Downton Abbey’ star Michelle Dockery loves playing a ”b***h.”

The 31-year-old star, who has been cast as Lady Mary in the period drama, is looking forward to being ”incredibly mean” after her on-screen husband Matthew (Dan Stevens), was killed off in the Christmas Day episode of hit series.

Michelle told The Sun newspaper: ”Mary is a very different character to who I am and she can be incredibly mean – and I really love playing those moments when she is.

”Yeah, it’s awful but I love being a bitch!”

While she admits she does not resemble her alter-ego, playing a character who is so different from herself is ”liberating.”

She explained: ””I can be very shy but when I act I’m a complete extrovert and there is a kind of buzz about that and about losing control.

”That crazy, liberating thing of playing something that’s nothing like yourself — it’s what I love about it. I’m not really a bitch, I’m very nice! But it’s those parts of ourselves that we’re afraid of that we don’t tap into as much and that’s what’s so enjoyable about being an actor.”