Seth MacFarlane and Emilia Clarke have reportedly ended their romance.
The 39-year-old Oscars host and the Game Of Thrones actress, who were first spotted together last September, are said to have called time on their six-month relationship.
"They are no longer dating. It was really a location challenge. She has been in Europe shooting Game Of Thrones and he is based in California, so it was hard to make it work despite the distance," a source told E! News.
The insider added that there are no bad feelings between the pair, saying: "They have remained friends."
Seth and Emilia have remained low-key about their romance.
They first emerged as an item when the Family Guy funnyman and the 25-year-old were seen getting cosy at the HBO Emmy after-party in Hollywood in the autumn, although he denied the reports, calling himself a "single guy" on Twitter.
Both stars have not commented on the split stories.
Seth, the co-creator of American Dad!, has been working on a new TV series called Dads, as well as Western comedy movie A Million Ways To Die In The West.
"In pre-production for A Million Ways To Die In The West. My horse hasn't kicked me yet, but he did say he hates Family Guy past season 3," he tweeted.
Emilia, who reprises her role as Daenerys Targaryen for the third series of the HBO medieval fantasy show, will soon be seen on Broadway in a new production of Breakfast At Tiffany's.