Christiane Seidel is an international actress who stars as Martha, a mysterious free-spirited woman in the Netflix mini-series, Godless. She was recently known as Sigrid Mueller, the murderous Norwegian nanny-turned-wife to Michael Shannon's rogue FBI Agent Nelson Van Alden on HBO's Boardwalk Empire. Her television debut was a Guest Star on NBC Universal's Law & Order: Special Victims Unit Season 12 Premiere. Christiane also starred as FBI Agent Sarah DeSoto in the noir-feature film, The Hollow, produced by Lisa Bruce (The Theory of Everything) as well as several German television comedy feature films. Christiane is a member of the Scandinavian American Theater Company that introduces award-winning contemporary Scandinavian plays to the USA and starred in the American Off-Broadway premiere of Then Silence by acclaimed Norwegian playwright Arne Lygre. She is fluent in English, German, and Danish.