Kit Harington insists he's not ''humourless''.

The 'Game of Thrones' actor is renowned for his serious tone both on and off screen, but claims he's funny when around his friends, and just doesn't tend to joke around while in the public eye.

He revealed: ''In my private life I like to think so. I'm not humourless. But perhaps it's not a side that people see very often.''

However, the 28-year-old star is hoping an upcoming role in critically acclaimed short comedy movie '7 Days in Hell' will change people's perceptions about him, as he believes it proves he can be funny.

Speaking about the production - which recently premiered at the South by South West festival in Texas - he told the Observer newspaper: ''I play a very stupid English tennis player with an over controlling mother. I haven't been in much comedy for a while. You find out very quickly if you can do it or not.''

Despite his best efforts to branch out and escape the role which has made him a household name, Kit - who plays the lead character in the upcoming thriller 'Spooks: The Greater Good' - believes his character, Jon Snow, in the epic HBO drama is what he will always be known for, regardless of other roles he plays.

He admitted: ''I accepted that I'll most likely be remembered for Jon Snow a long time ago.''