Taraji P. Henson is a 'Person of Interest.' The Oscar-nominated actress will star opposite Michael Emerson on the CBS pilot.

According to Vulture, Henson will play Carter, a detective. The J.J. Abrams-produced pilot follows an ex-CIA agent who is hired by a billionaire to help fight crime in New York City. Emerson will play the eccentric billionaire.

Henson previously appeared on 'Eli Stone' and 'Boston Legal.'

In other casting news ...

• Gabrielle Union has joined the cast of 'Little in Common.' The Rob Thomas comedy follows three couples who are connected via Little League sports. Union will play a very competitive lobbyist. [Deadline]

• Jean Smart will star in NBC's untitled comedy about a family of doctors. Smart will play Dr. Barbara Foote, a meddlesome mom. [Deadline]

• Aidan Quinn will star in 'Prime Suspect.' Quinn will play Lt. Kenny Rowe. Maria Bello stars as Det. Jane Tennison. [TVLine]

• Tracie Thoms and Pedro Pascal have joined 'Wonder Woman.' Thoms will play Etta Candy, Wonder Woman's close friend. Pascal will play Wonder Woman's ally in the police department. [Deadline/Deadline]

• Jeff Hephner has been tapped by NBC for a lead role in 'Playboy.' 'Hellcats' star Hephner will play Nick Dalton, an attorney with ties to the mob and an investment in the club. [TV Guide]

• 'Across the Universe' star Joe Anderson has joined 'The River.' Robin Givens has joined 'Tagged' opposite Gary Cole. Lucy Griffiths will star in The CW's zombie drama 'Awakening.' [Deadline]

• Jeff Perry has joined Shonda Rimes' 'Damage Control.' The 'Grey's Anatomy' star will play Cyrus in the pilot about a crisis management expert. [Hollywood Reporter]

• Kelly Hu will star opposite Don Johnson in 'A Mann's World.' Hu will play Johnson's character's wife. [Deadline]