For the longest time, Kit Harrington was forced to maintain his long and curly locks for the hit television show "Game of Thrones," but since his character Jon Snow's shocking death during the season 5 finale, he is free to do whatever he wants with it.

"I can chop it off right now," he told ET Online with a smile.

Harrington's foray in television shows and films always required the actor to portray a period character, so for his next project, he insisted on something modern.

"I'd just come off doing Thrones and Pompeii," said Harington. "I think by that point I could feel myself getting a little boxed into one category, so I said, 'Let's just do something in the 21st century, please.'"

He got his wish since his next project is the new spy thriller "MI-5."

In the show, Harington plays Will Holloway, a special agent who joins forces with disgraced Chief Harry Pearce (Peter Firth) to track down an escaped terrorist in London. 

He hoped that being in the series would help shift his image as an actor and avoid him being typecast in period pieces.

Harrington then laughingly shared some details about the series, saying that while they were shooting it, it was during the height of his film "Pompeii."

"The film Pompeii was out at the time and I seemed to be plastered over every London bus!" recalled Harington. "(We had to call cut on many shots) because you'd see my face in the background going past on a bus."

At the same time, he had to carry a gun all around London. Harrington got worried about doing so while they were shooting a scene in Heathrow Airport.

"I had to run through Terminal 5 of Heathrow with a handgun," the 28-year-old actor said. "I remember saying to the security guards, 'You are absolutely sure that the security at Heathrow and the police know who I am and what I'm doing? Because I'm pretty sure there's a shoot-to-kill policy here. If one police officers isn't aware of what we're doing, I don't want to be faced with a real gun in my face,' and luckily, I didn't have to."

Meanwhile, Harrington answered some questions fans posted for him on Twitter.

Apparently, his favorite animals are pandas and owls, and Harrington loves to eat anything with a Mediterranean spread.

"Fresh anchovies, parma ham, fresh tomatoes -- something like that," he said.

He is also a fan of the "angry music" produced by The Prodigy.