John McNamara

When his stepbrother is found dead, a man is charged with murder and is accused of using his sleepwalking as a cover-up.

Good Cop, Dead Cop: Mary has a one-night stand with a hunky witness, but she suffers the consequences when he is accused of murder.

A marshall who watches over federal witnesses in New Mexico, Mary Shannon (Mary McCormack) faces more tough tasks this season as she endeavors to treat mob informants and other lowlifes just like innocent bystanders -- all while maintaining her own secret identity. Complicating Mary's life is her difficult partner, Marshall Mann (Fred Weller). Lesley Ann Warren, Nichole Hiltz and Cristián de la Fuente co-star in this USA original series.

In the third season of USA Network's hit series about Mary Shannon (Mary McCormack), a marshal in the Albuquerque branch of the Witness Protection Program, Mary copes with the effects of getting shot and continues to protect witnesses, whether criminals or innocents. Mary's partner, Marshall (Frederick Weller), is determined to find her assailant, while her fiancé (Cristián de la Fuente) and wacky mother (Lesley Ann Warren) beg her to retire.

Mary McCormack stars as Mary Shannon, an undercover U.S. Marshal based in Albuquerque, N.M., who's charged with the trying task of protecting and relocating members of the federal witness protection program. This crime drama chronicles Mary's attempts to keep her witnesses safe while keeping her own identity a secret from the world at large -- including members of her own family. Frederick Weller co-stars as Mary's brainy best friend and partner.

Mary McCormack stars as Mary Shannon, a U.S. Marshal working in the highly secretive branch of the witness protection program (WITSEC) who relocates Federal Witnesses - many of them career criminals, and many who are innocents that had the misfortune of witnessing a crime. They all have one thing in common - someone wants them dead. Mary's job is to see that doesn't happen, while at the same time attempting to manage her own dysfunctional family.

This original series stars Mary McCormack (Private Parts and The West Wing) as Mary Shannon. Her friends and family think she's just a glorified courier, but she's actually a U.S. marshal working for the Witness Protection Program. When witnesses come forward to testify against the worst-of-the-worst criminals, the U.S. marshals protect them before and after they testify.

Mary McCormack (Private Parts and The West Wing) stars as Mary Shannon. Her friends and family think she's just a glorified courier, but she's actually a U.S. Marshal, working for the highly secretive Witness Protection Program. Her job is to help relocate federal witnesses. Whether they're career criminals, or just people who had he misfortune to witness a crime, they all share one thing in common --- somebody wants them dead. Co-starring Frederick Weller and Lesley Ann Warren.

In Plain Sight returns for its fourth season, starring Mary McCormack as Mary Shannon, a U.S. Marshal working in the highly secretive branch of the witness protection program (WITSEC), who relocates Federal Witnesses, most of whom fall into three categories: career criminals, whistle-blowers or innocents who had the misfortune of witnessing a crime. They all have one thing in common - someone wants them dead. Mary's job is to see that doesn't happen, while at the same time attempting to manage her own dysfunctional family.