Sal Elias is playing a dual role, as both Young Sebastian (in Act 1) and Brahm (in acts 2 & 3).

Sal’s roles will take him around the world, from Europe to the Outer Banks, as he pursues vampires (and romance) wherever they may roam. While he may be a bit liberal with the Holy water, he is equally handy with a sword and witty repartee.

Sebastian (young)/Brahm: 20s to 30s. Sebastian is a professional vampire hunter. A zealot’s zealot. Ethnic garb fitting for eastern Europe 1920s. Brahm is his apprentice: a beaten-down young man who knows a life of nothing but service. Brahm develops into his own man in a return appearance. A somewhat ageless appearance would be helpful for pulling this off.

from the Casting Description of Children of the Night