New cast members: Steven Strait as Holden and Shohreh Aghdashloo as Avasarala!
Steven Strait starred in the two-season TV series Magic City, and has also starred in the 2012 sci-fi thriller After. Aghdashloo was nominated for an Academy Award for her performance in House of Sand and Fog (2003) and won a Primetime Emmy for the HBO miniseries House of Saddam (2008), both awarded for her work as supporting actress; in the sci-fi department she had a minor role in X-Men: The Last Stand.
All three cast members are slightly younger than their book counterparts – Strait (28) plays Holden (30), Aghdashloo (62) plays Avasarala (in her seventies) and Jane (45) plays Miller (49) – but not much.
More interesting is the fact that the cast for the 10 episode series so far includes characters from the two first books, Leviathan Wakes and Caliban's War, which suggests that we will not get a full season treatment for each book.