LOS ANGELES (Zap2it.com) Scott Foley, Amy Acker and Regina Taylor are the latest additions to the ensemble of CBS' drama pilot "The Unit." Based on Eric Haney's book "Inside Delta Force," "The Unit" looks at members of a Special Forces unit and their families. David Mamet ("Glengarry Glen Ross," "Heist") and Shawn Ryan ("The Shield") are executive producing the 20th Century Fox TV production. Dennis Haysbert ("24"), Michael Irby ("Line of Fire") and Regina King ("Ray") were previously announced for the cast.

Foley, last seen in a guest starring role on FOX's "House," is best known for his run as Noel Crane on The WB's "Felicity." The actor, who also starred in NBC's "A.U.S.A.," has also done recent spots on "Scrubs" and "Jack & Bobby."

This will be Acker's first regular television gig since she ended her run on The WB's "Angel" last spring. In addition to playing Winifred Burkle from 2001-2004, Acker has appeared on "Wishbone" and in the 2003 telefilm "Return to the Batcave: The Misadventures of Adam and Burt." Taylor has been a regular on "I'll Fly Away" and "The Education of Max Bickford."

The Hollywood Reporter has no specifics on which parts the various actors will play.