Actress Tricia Helfer is heading back to outer space, boarding the new Syfy Channel event series Ascension.

The former Battlestar Galactica co-star will play the character Viondra Denniger, who is described as beautiful, manipulative, and dangerous. “Viondra regards herself as a not-so-secret power broker aboard the Ascension,” Syfy said in a press release. “As the Captain’s wife, Viondra is afforded a position of power and privilege, which she leverages as the Ship’s Chief Steward.”

In 1963, the U.S. government launched a covert space mission sending hundreds of men, women and children on a century-long voyage aboard the starship Ascension to populate a new world. Nearly 50 years into the 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.

Since BSG ended Helfer has appeared on such shows as Dark Blue, Warehouse 13, Two and a Half Men, The Firm, and Criminal Minds. She also stars as a Texas Ranger in the ABC drama Killer Women, which aired 8 episodes earlier this year.

The ambitious, 6-hour mini-series Ascension comes from writer Philip Levens (Smallville), who is also executive producer and showrunner. It will air in 1-hour weekly doses, beginning this November.

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