This is a list of characters in the USA Network original drama TV series In Plain Sight, which follows two U.S. marshals working in the witness protection program.
Mary's issues, stemming from her father's abandonment and her mother's alcoholism, has saved the lives of some of her witnesses.
In the second-season finale, "Don't Cry for Me, Albuquerque" (2.15), Mary is shot while defending a witness.
Marshall, Mary's partner, and Stan, her boss, work together to find the person who shot her.
The third season opens with Mary being released from the hospital, very much alive and ready to get back to work.
Soon, Mary meets FBI Special Agent Mike Faber, who asks her on a date.
At the start of the fourth season, Mary had already ended the relationship with Faber in order to give him the opportunity to try to work things out with his ex-wife.
In the sixth episode of the fourth season, "Something A-mish", she finds out that she is pregnant by Mark after one night together.
McCormack made a guest appearance as Mary Shannon in the Law & Order: Criminal Intent episode "Contract".
He is laconic and usually laid-back, unlike Mary, so their ways of thinking and acting can differ greatly, leading to conflicts at times.
In the fourth season, Marshall finally realizes he and Mary are not right for each other and he begins a relationship with a police officer, Abigail, moving in with her.
In the series finale, it is revealed that Marshall is Stan's replacement as chief inspector for WitSec's Southwest region.
Brandi Katherine Shannon (Nichole Hiltz) is Mary's sister, who is naïve, resistant to advice, and often enabling of others' bad choices.
During the first season, Brandi is involved romantically with Chuck Johnson, who lives thousands of miles away in the Shannons' native New Jersey.
Their suspicions are confirmed when Brandi travels to New Jersey, and is implicated in a major drug deal initiated by Chuck.
During the deal, she discovers that one of the dealers, a meth addict, has a young infant, and calls child services to protect the baby.
Mary is chained to a post in a basement, nearly raped before being executed, but just manages to free herself and kill her would be rapist.
Soon after, in the second season, Robert O'Conner (played by actor Will McCormack, real-life brother of star Mary McCormack), the agent in charge of the drug trafficking case, returns to arrest Brandi for drug trafficking and murder.
However, in "Something Borrowed, Something Blew Up" (4.13), Brandi leaves Peter at the altar and Mary agrees to break the news to the would-be bridegroom and everyone else.
By the time of "The Anti-Social Network" (5.01), Brandi has moved away from Albuquerque to be with Scott Griffin, with whom she shares many interests.
In the series finale, Brandi returns to Albuquerque to live with Mary, and is also pregnant by an unknown man.
Jinx Shannon (Lesley Ann Warren) is a recovering alcoholic, and the mother of Mary and Brandi.
Later, when confronted with video of her arrest before court, she realizes she is an alcoholic, pleads guilty, and asks to be placed in rehab.
Stan works hard to protect his marshals, which leads to constant conflicts with other law-enforcement agencies and, sometimes, even witnesses.
Raphael Ramirez (Cristián de la Fuente) is a former minor league baseball player for the Albuquerque Isotopes, and is Mary's former fiancé.
When Brandi returns from New Jersey with a suitcase full of drugs, he steals them and hides them in the baselines at the baseball stadium, saving the Shannon sisters from certain arrest.
Dr. Shelly Finkel (Ali Marsh) is a psychiatrist originally sent to observe Mary, but appears in later seasons to evaluate and treat witnesses.
He spent many of his resources and much of his time attempting to have Mary and Brandi arrested and charged with drug trafficking and murder.
She discovered O'Conner had been sleeping with one of the dead agent's wives at the time of the raid, and was attempting to prosecute Brandi out of guilt.
Eleanor Prince (Holly Maples) is the former Albuquerque WitSec office manager, and is currently an FBI analyst.