The Velaryon looks are quite seriously a major story element in the Dance of the Dragons

It's also a minor plot point in the Witcher regarding Yen and Fringilla Vigo, the latter of which is distantly related by blood to both [a cousin][(https://witcher.fandom.com/wiki/Anna_Henrietta) of the Nilfgaard Emporer and Emperor himself.

The plot point being Fringilla is meant to look so much like Yen she's sent after Geralt by the Lodge of Sorceresses to distract him "any way she can" to stop his search for Ciri. Those links have a tab to see the Netflix castings and not only were both "diversified" neither look alike. That said the castings in general were shit for the show and Cavill really deserves fucking better at this point having now had a passion project like the Witcher fucked over by the execs and his role as Superman fucked by Whedon and execs too.