James Corden has said he isn't a 'confident lout drinking lad' and often finds he struggles with fame.
Speaking out in an interview, the TV star, 44, said that those who meet him expect him to be the same as his character Smithy from Gavin and Stacey - but he is nowhere near as extroverted in real life as people think he is.
He instead said he used to 'get freaked out' by fame but has now learned how he should deal with it and now just thanks those who come up to him.
James first found fame in Gavin and Stacey and has now gone on to have a hugely successful career, as well as making it in the US.
In an interview with The Times, talking about dealing with fame, James said: "I think I used to get quite freaked out. I didn’t know how to deal with it, and also there was this thing of people going, 'Ah, Smithy!' and – what do you do? They’re expecting to meet this really confident lad, or lout, drinking lager, and I’m really not a lad, you know?
"I’m a musical theatre performer. I don’t drink beer. I like maybe one slimline G&T. I didn’t know what people wanted from me.
"The thing is, no one ever, ever tells you how to deal with this stuff. You have to figure it out along the way, and I used to get so tangled up in whether the people liked the character or me, and..." he said.
The interviews comes after James apologised following backlash when he was accused of being rude to restaurant staff.
He called his restaurant ban 'the most surreal moment', as well as denying 'screaming at anyone'.
The Late Late Show host found himself in hot water over an argument with the owner of a New York eatery, who claimed he was 'extremely nasty' to staff.
After he sent an omelette back, allegedly telling staff that they couldn't do their jobs, he was banned from Balthazar in Manhattan.
Keith McNally, the restaurant's owner called him a 'tiny cretin of a man' and said that he was the 'most abusive customer' he's ever had.
James visited the restaurant with his wife for brunch and ordered an egg yolk omelette, however he sent the food back after he found a 'little bit' of egg white mixed with the yolk.
The kitchen made a new omelette and sent it out with house fries, rather than a salad - which infuriated James.
According to Keith, he shouted: "You can't do your job! You can't do your job! Maybe I should go into the kitchen and cook the omelette myself!"
Speaking about the backlash, James called it a surreal moment and said: "I never screamed at anyone, I didn't shout, didn't call anyone a name or swear or use derogatory language... How is it remotely a thing?
"And that be OK? And now it's fact, and that's that. When that person who posted the story wasn't even there. Just so odd. And you know, the reason I had to send the omelette back is because Jules (his wife) is allergic to egg white."