Cas Anvar: Cas Anvar. Actor: The Expanse. Cas Anvar lit up our screens when internationally acclaimed series "The Expanse" premiered five years ago. His character Alex on The Expanse" became an instant fan favorite and one of the most quoted characters of the show. In spring 2020, he wrapped shooting his fifth and final season of the hit Amazon Prime series and, hours later, Cas was cast opposite Viola Davis on "How...
