The upcoming fourth season of "Game of Thrones" sees one notable supporting character change faces - the character of Second Sons mercenary Daario Naharis.
In the second half of the third season, Ed Skrein played the long-haired character who ended up swearing his loyalty to Daenerys.
Michiel Huisman ("Treme") takes over the role in the fourth season, and now executive producers are apparently so happy with his work that Huisman has been promoted to series regular for the fifth season.
Said fifth season hasn't been officially greenlit by HBO as yet, though many expect it's only a formality at this point.
The fourth season is slated to air in the second quarter of 2014. No official premiere date has been announced, though March 30th seems the obvious candidate.