Main •
Maggie Q as Beth Davis: a victim of stalking. Born Michelle Webber, Davis changed her name following the stalking-related death of her family. She's now a
Lieutenant II in the LAPD and the officer-in-charge of the Threat Assessment Unit (TAU). Introverted, Davis considers her team to be her surrogate family; and, when she's not investigating stalking cases, she's lecturing at university campuses on the subject. •
Dylan McDermott as Jack Larsen: an LAPD
Detective II. He recently transferred to the TAU from the
NYPD Homicide Division to be near his son. Hired because of his friends "upstairs", Larsen had to earn the respect of Davis and her team, who thought there were more deserving candidates for his position. •
Mariana Klaveno as Janice Lawrence: a Detective II who is second-in-command of Davis' unit. •
Victor Rasuk as Ben Caldwell: a Detective I, and a rookie member of the TAU. •
Elisabeth Röhm as Amanda Taylor: the mother of Jack's son. Lovers in New York, Amanda left Jack to start a new life at the Los Angeles District Attorney's Office. She currently serves as the TAU's Deputy D.A.
Recurring •
Tara Summers as Tracy Wright, Beth's best friend •
Erik Stocklin as Perry Whitley/"Brody", one of Beth's stalkers •
Eion Bailey as Ray, one of Beth's stalkers, he once set a fire that killed her family •
Gabriel Bateman as Ethan Taylor, Amanda and Jack's son •
Warren Kole as Trent Wilkes, LAPD detective and Amanda's boyfriend •
Mira Sorvino as Vicki Gregg, an FBI agent who replaces Beth as the interim commander of the TAU •
Chelsea Harris as Belle ==Episodes==