A notorious Lyseni pirate and smuggler, Salladhor Saan is a flamboyant, colorful old man with curly white hair, given to outlandish clothing. A friend of Ser Davos’s from his smuggling days, he leads his pirate fleet on Stannis’s behalf, as the Baratheon claimant to the throne.
Msamati is younger than Saan in the books. More notably, the people of Lys are known for their fair hair and blue eyes, and in fact the Saans appear to be of Valyrian descent in the novels. Msamati doesn’t fit this, but it may be that he’ll be said to hail from some other place, or perhaps some explanation will be given to explain his hailing from Lys.