Ascension is an ambitious original drama following a covert U.S. space mission launched in the 1960's that sent hundreds of men, women and children on a century-long voyage aboard the starship Ascension to populate a new world. Half way into their journey, as they approach the point of no return, the mysterious murder of a young woman causes the ship's population to question the true nature of their mission. The series stars Brandon P. Bell as the confident and capable First Officer Aaron Gault, Brian Van Holt as the eponymous ship's Captain William Denninger, and Tricia Helfer as Viondra Denninger, the captain's beautiful, manipulative and dangerous wife (who also serves as the ship's Chief Steward). Joining Bell, Van Holt and Helfer are Tiffany Lonsdale as Chief Astronomer Emily Vanderhaus, Andrea Roth as the ship's head doctor Juliet Bryce, Jacqueline Byers as her daughter, Nora Bryce, and P.J. Boudousqué as Nora's love interest, James Toback.