Tricia Helfer joins Lloyd Owen and Morgan Turner in FOX pilot

Tricia Helfer has signed on to co-star in FOX's drama pilot "Inseparable."

Created by Shaun Cassidy ("Invasion"), "Inseparable" is a modern-day Jekyll-and-Hyde-style look at a partially paralyzed forensic psychiatrist (Lloyd Owen) with a split personality. His main alter ego just happens to be a master criminal.

According to The Hollywood Reporter, Helfer will play a police department psychiatrist.

In addition, the trade reports that Morgan Turner will play the main character's daughter.

Helfer, currently appearing on the last season of Sci Fi Channel's "Battlestar Galactica," signed a talent deal with FOX back in April. The Canadian-born model-turned-actress previously co-starred in the FOX pilot "Them."