July 22, 2011 09:00 PM

Though he shares screen time with actors like Sean Bean and Emmy nominee Peter Dinklage, Kit Harington’s favorite Game of Thrones costar may be his furriest one.

“I love my dog. I love Cooper, or Ghost, as he’s called,” the actor, who plays Jon Snow on the HBO series, said Thursday during a panel at San Diego’s Comic-Con. “We got on very well.”

But while Cooper, who plays Snow’s direwolf, a mystical wolflike creature, may have been easy to befriend, he wasn’t necessarily the most cooperative costar.

“He just didn’t do what he was told,” Harington continued, noting that the dog happily went after the meat in his hand rather than act the part of an intimidating animal.

“He’s wagging his tail and he had his tongue out, not looking threatening or silent at all,” he said. “But I think he did a fabulous job, really.”

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