USA Network announced today the casting of Joshua Malina (The West Wing, Numb3rs) as a new key character in the hit original series and #1 new show of the summer, In Plain Sight. Malina joins newly announced recurring cast member Holly Maples (The Office, Curb Your Enthusiasm). The show is currently in production on its second season with all 16 episodes being shot entirely on location in and around Albuquerque, New Mexico. The series is created and written by David Maples (Home Improvement, Huff), who serves as executive producer alongside Paul Stupin (Dawson's Creek, Beautiful People).

Malina will play Peter, an alcoholic in recovery whom Brandi meets at an AA meeting and Maples will play Eleanor, the new administrative assistant. Season two guest stars, thus far, include Cynthia Watros (Lost, The Drew Carey Show) as Maureen, a single mother with three kids who becomes one of Mary's witnesses and Ali Marsh (Law & Order, As the World Turns) as Shelley, the department psychologist sent to perform Mary's psychological evaluation.

In Plain Sight stars Mary McCormack (The West Wing, Private Parts) as Mary Shannon, a U.S. Marshal working in the highly secretive branch of the witness protection program (WITSEC). Mary's charge is to relocate federal witnesses, both career criminals and innocent bystanders, with one common problem -- someone wants them dead. Mary's job is to make sure that doesn't happen, while simultaneously juggling her own dysfunctional family.

In Plain Sight also stars Frederick Weller (The Shape of Things, Law & Order: Criminal Intent), Lesley Ann Warren (Desperate Housewives, Will & Grace), Nichole Hiltz (The Riches, Strong Medicine) and Paul Ben-Victor (The Wire, Entourage). Returning this season as series regulars are Cristián de la Fuente (Dancing with the Stars, Ugly Betty) and Todd Williams (Tilt, Third Watch). In Plain Sight comes from Universal Cable Productions.