Hollywood actor looks unrecognisable as he enjoys day out at Wimbledon - but can you guess who he is?

A leading Hollywood actor looked worlds away from his usual clean cut image as he attended Wimbledon on Friday evening.

The star 56, who has appeared in a number of huge blockbusters was unrecognisable as he watched Lorenzo Musetti take on Novak Djokovic at Centre Court.

The writer and comedian - who also produced the hugely popular drama series, Succession where he was awarded four Emmys and has received a star on the Hollywood Walk of Fame - watched on intently as the two men battled it out to get to the final.

With messy grey hair, an unkempt bushy beard, untucked shirt, baggy trousers and trainers, the screen star looked drastically different from his usual buzz cut hairstyle and clean shaven appearance.

But can you guess who it is yet?

A leading Hollywood actor looked worlds away from his usual clean cut image as he attended Wimbledon on Friday evening

The star 56, who has appeared in a number of huge blockbusters including Step Brothers and Blades of Glory was completely unrecognisable as he sat in Centre Court

It's Will Ferrell of course.

The outing comes after Will opened up about the filming of one of his biggest hits: Elf.

The actor played Buddy the Elf in the holiday comedy, an elf from the North Pole who learns his real father is a New York publishing executive (James Caan).

The film was a huge hit, earning $228.9 million worldwide from just a $33 million budget.

The funnyman appeared on his Anchorman co-star Christina Applegate's Messy podcast, where he admitted James Caan didn't think he was funny.

He said: 'In between set ups, [Caan] would be like, "I don’t get you. You’re not funny." And I’m like, "I know. I’m not Robin Williams".

'And he was like, "People ask me: Is he funny? And I’m like, No, he’s not funny."'

He added that it was at the premiere when James had seen the finished film that he said what he really thought.

With messy grey hair, an unkempt bushy beard, and an untucked shirt, baggy trousers and trainers, the screen star looks drastically different from his usual buzz cut hairstyle and clean shaven appearance

More than 20 years after it hit theatres, Will Ferrell has opened up about the filming of Elf where he admitted James Caan (pictured centre ) who played his father in the film didn't think he was funny

Talking on a podcast Will admitted: 'In between set ups, [Caan] would be like, "I don’t get you. You’re not funny" 

The actor later added that after seeing the finished film at the premiere, Caan admitted that Will's performance was 'brilliant'

Elf was Will's first big movie after leaving Saturday Night Live, where he starred from 1995 to 2002, following a supporting turn in Old School. 

'And then we were walking out of the theatre at the premiere, and we walk out together and I take it as the best compliment because it’s coming from James Caan.

'He was like, "I’ve got to tell you: I thought everything you were doing while we were filming was way too over the top. Now that I see it in the movie, it’s brilliant,'” Will said. 

'But I love that the whole time, he’s not acting. He’s truly annoyed with me. He’s like, "Can this guy shut the f**k up? Jesus,"' Will joked.

'I literally drove him crazy in that movie, just acting like that kid. But that was the funniest thing, him walking out of the theatre and shaking his head and going ‘It’s brilliant,"' Will admitted.

The film was Will's first big movie after leaving Saturday Night Live, where he starred from 1995 to 2002, following a supporting turn in Old School.