Game of Thrones

stars Kit Harington and Rose Leslie have officially stepped out as a couple, walking the red carpet together at London's Olivier Awards.

The couple, who played on-screen love interests in Game of Thrones, previously dated in 2012 before reportedly splitting.

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The pair were all smiles on the red carpet, laughing and whispering to one another in front of photographers.

Leslie played Wildling Ygritte in three seasons of Game of Thrones, before she was killed by Jon Snow in the season four finale.

Former co-star Emilia Clarke has given the pair her seal of approval, telling Entertainment Tonight: "My goodness! You know, we like to spread the love on our show. It's a beautiful thing .... I mean, there are worse things than being caught kissing Jon Snow!"