Here's why Jon Snow's father looked so familiar in the 'Game of Thrones' finale

Warning: Spoilers ahead for "Game of Thrones" season seven, episode seven, "The Dragon and the Wolf."

"Game of Thrones" fans finally got to see what Rhaegar Targaryen looks like, and it left some people confused.

Sam finally arrives at Winterfell after leaving Oldtown and the Citadel and heads up to Bran's room. During their discussion, Bran finally reveals that he knows the truth about Jon Snow's parentage — Jon's real name is Aegon and he is the son of Rhaegar Targaryen and Lyanna Stark.

But Bran believes that Jon is still a bastard until Sam tells him that he discovered (actually it was Gilly) that Rhaegar had his marriage annulled and married another woman (Lyanna) in secret. 

Sam asks Bran if he can see that, and Bran has a vision and witnesses the marriage. 

Though it's only a brief glimpse, fans were befuddled because the actor closely resembled Daenerys' brother Viserys.

But the characters are actually played by two different actors.

Viserys was played by English actor Harry Lloyd.

Meanwhile, Rhaegar was played by Welsh actor Wilf Scolding. His few TV roles include "The Passing Bells" and "Six Wives with Lucy Worsley."

When its this cold, you should probably jump in a river somewhere #wildswim #naturalwater

A post shared by Wilf Scolding (@wilf.scolding) on Jun 19, 2017 at 11:47am PDTJun 19, 2017 at 11:47am PDT

To be fair, it makes sense that the two actors would look so similar. As with most of the Targaryen family, both Viserys and Rhaegar had silver-blond hair and lilac eyes. In George R.R. Martin's "A Clash of Kings," Daenerys sees Rhaegar in a vision. He is described as a man who "had her brother's hair, but he was taller, and his eyes were a dark indigo rather than lilac." 

So we understand why HBO would cast such a similar-looking actor to play Viserys' brother. But given how complicated the storyline already is, maybe they could have made it a little more clear that they were different people.

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Watch: 6 details you might have missed on the season 7 finale of 'Game of Thrones'

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