Robert Pattinson looks more like a grizzly werewolf than vampire on a day out in London with his sister

Edward Cullen would never dream of stepping out of the house in a such a scruffy ensemble.

But then Robert Pattinson has always been at pains to point out that he is very different to the elegant, forever-17-year-old vampire that he plays in the Twilight films.

The heartthrob, who tries to avoid the limelight, looked more like one of the grizzly werewolves which are rivals to his vampire clan in his latest movie, New Moon.

Twilight star, actor, Robert Pattinson,

Scruffy: Robert Pattinson steps out with his sister Lizzy after spending Christmas at home in Barnes, London

Pattinson, 23, was spotted leaving his home in Barnes, south-west London with his elder sister Lizzy.

He has been home for the festive period after a busy year shooting in Canada and the U.S. for films including Twilight films New Moon and Eclipse, and Remember Me, which is due out in April.

And, so far, there has been no sign that he has hooked up with his on-screen love Kristen Stewart, who plays Bella, and is rumoured to be his real-life girlfriend.

Twilight star, actor, Robert Pattinson,

Could Twi-harder, Rob: The Twilight and New Moon actor is known and loved for his clean-cut character Edward Cullen

Edward Cullen

Clean-cut: As Edward Cullen

Lizzy, a singer, used to dress the actor as a girl until he was 12 and introduce him to friends as Claudia.

He said: 'Twelve was a turning point as I moved to a mixed school and then I became cool and discovered hair gel.'

His beard could well be an attempt at a ruse for the paparazzi and fans.

The actor has been adding to his security team due to increased attention from fans.

He told MTV: 'People ask me to bite them and want to touch my hair.

'I just don’t want someone to have a needle and give me HIV and I don’t want to get shot or stabbed. This is my life.

'People know my name and ambush me in public and try to figure out what hotel I’m staying at. I have accepted it as real now, but it still feels surreal.'