Tate Donovan Joins 24: LIVE ANOTHER DAY as White House Chief of Staff Mark Boudreau

Tate Donovan will join the presidential cabinet of 24: LIVE ANOTHER DAY as White House Chief of Staff Mark Boudreau. 24: LIVE ANOTHER DAY debuts with a two-hour television premiere Monday, May 5 (8-10 p.m. ET/PT) on FOX, and makes its time period premiere the following week on Monday, May 12 (9-10 p.m. ET/PT).

In the highly anticipated event series starring Kiefer Sutherland, Boudreau is an astute and strong-willed political advisor who is married to President James Heller's (William Devane) daughter, Audrey Raines (Kim Raver) - Jack Bauer's (Sutherland) former flame.

HOSTAGES Two-Hour Season Finale Sneak Peek

Duncan (Dylan McDermott) speaks to Ellen (Toni Collette) about their
plan.  Photo Credit: Jeff Neumann/Warner Bros. Entertainment Inc.

The first season of HOSTAGES wraps up with back-to-back episodes ("Suspicious Minds" and "Endgame") on Monday, January 6 starting at 9 p.m. ET/PT on CBS.

After Duncan discovers Sandrine's betrayal, he decides to use her to save Nina and Sawyer. Also, just before Ellen is to operate on the President, the First Lady confronts her and forces Ellen to tell the truth about the assassination plot.

Watch a sneak peek video below: