Warning: This article and podcast episode contains spoilers fromHouse of the Dragonseason 1, episode 10.

If so, put your skills to the test by rewatchingthe season 1 finale.

“It was a shot over two days and then one got COVID,” he adds.

House of the Dragon Episode 9

Twins Luke and Elliott Tittensor play Arryk and Erryk Cargyll in ‘House of the Dragon.'.Ollie Upton / HBO

“[Elliott] got COVID, so we swapped him out with his brother.”

Adding to the confusion were the names of the actors versus the characters.

“The way this came to me was the game of telephone,” the director jokes.

Yaitanes notes “that would’ve killed us” if Luke hadn’t been able to step in.