Radha Mitchell Marta Walraven Actor Sterling Beaumon Gabriel Walraven Actor Clifton Collins Jr. FBI Agent James Ramos Actor Luke Goss Luther Actor Suleka Mathew Dina Tomlin Actor Erin Moriarty Natalie Walraven Actor Jaime Ray Newman Kat Petrova Actor Jakob Salvati Boris Walraven Actor Lee Tergesen Mike Tomlin Actor Wil Traval Irwin Petrova Actor Rade Serbedzija Andrei Petrova Actor Goran Visnjic Nicholae Schiller Actor Anson Mount Guest Star Erin Cahill Guest Star Edi Gathegi Guest Star Natalia Nogulich Guest Star Pedro Pascal Guest Star Camille Sullivan Guest Star Tom Pickett Guest Star Tanner Saunders Guest Star Melissa Rosenberg Executive Producer, Writer Howard Klein Executive Producer Alon Aranya Executive Producer Mark Pellington Director