Ona Grauer is a Mexican–born Canadian actress best known for her role as prosecutor Abby St. James in the police procedural television series The Bridge, in 2010.
Grauer was born in Mexico and raised in Nelson, British Columbia. When she was younger, her mother worked as a caterer on the set of MacGyver, whose star, Richard Dean Anderson, would later act with Ona in Stargate SG-1.
On the big screen Grauer has appeared in Snow Demon; House of the Dead; Deep Evil; Firewall; Alone in the Dark and The Lizzie McGuire Movie, among others.
Her television credits include leading and recurring roles on The Revolution; Critical Incident; Intelligence; Smallville; Three Moons Over Milford; The Collector; Lost Behind Bars; The L Word and The Black Sash.
She has guest starred in Flash Gordon; Supernatural; Young Blades; Andromeda; Stargate SG-1; Freedom and First Wave. Grauer starred in many movies-of-the-week, including Ladies Night and Murder at the Presidio.