Dailies | ‘Game of Thrones’ Star Kit Harrington Talks Toilets, Ancestry, and Crappy Aspects of His Job (Video)

The actor who plays Jon Snow on HBO's hit fantasy series reveals how his great grandfather helped shape sanitary society by inventing a throne we all (hopefully) own

Ever wonder how Kit Harrington‘s “Game of Thrones” character, Jon Snow, has managed to survive three whole seasons? Maybe it's because the creators, writers and producers are eternally grateful to the actor's ancestor, along with the rest of the civilized world.

“You might have the greatest thing ever in your family tree,” Jimmy Kimmel said on his ABC late-night show on Tuesday. “My family is very, very grateful to your great grandfather on a daily basis.”

“His name was John Harrington. He lived in the 1600s, and he invented the toilet,” Harrington explained. “Thus why it's called, the John.”

See video: ‘Game of Thrones’ Season 4 Trailer: Dragons, White Walkers And – Ugh – More Joffrey

Harrington can be seen on the big screen Friday in “Pompeii,” while fans anxiously await “GoT” return to HBO on April 6. He wouldn't reveal any potential spoilers about his character — including whether or not he'll make it to the fifth season — but he did make sure to emphasize that despite the show's popularity, there are some aspects of his job that stink.

“I lucked out with this show. I got this great HBO new TV show and it became a big hit,” Harrington said. “And somehow I'm always in the ice, and the cold, and the rain, surrounded by bearded, ugly men. It's a doubled-edged sword.”

Watch the rest of his interview (below), plus a segment in which two die-hard “GoT” fans yell at Harrington for his character's vow of celibacy: