Zack is Ephraim's 11 years old and suffers from his parents' break-up. He would like them to get back together, but understands his father's job is important and keeps him away.
Thomas the Master's chief lieutenant. He maintains his individuality and appears as a human so he can integrate himself into society. He ran death camps during World War II.
David is a pawnbroker. He met the Master while interned at a Nazi concentration camp. He's spent his life preparing to kill the Master after failing as a teen.
Eph is charge of the CDC Canary project in NYC. He responds to the mysterious deaths on Regis Flight 753. He's great at his job, but has a troubled personal life. He wants to get back together with his wife.
An odd viral outbreak pointing toward an ancient and evil strain of vampirism? In Manhattan? Gory high-stakes battles between humanity and the undead? Yeah, we're in.