The highly respected James Cromwell will recur this season as Phillip Bauer, the estranged father of Jack Bauer (Sutherland), while British actor/comedian Eddie Izzard will portray a villainous accomplice, Darren McCarthy. In addition to Cromwell and Izzard, newcomers joining the pulse-pounding thriller include Kal Penn ("Harold & Kumar"), Marisol Nichols ("In Justice"), Alexander Siddig ("Syriana") and Harry Lennix ("Commander in Chief"). Eric Balfour and Carlo Rota will reprise their respective roles as CTU contractors Milo Pressman and Morris O'Brian.
Season five concluded with a battered and bloodied Bauer captured by Chinese government agents and headed for points unknown. Season six picks up 20 months later. Wayne Palmer (DB Woodside), the strong-minded brother of the late President David Palmer, is now himself the President of the United States, while his sister, Sandra Palmer (Regina King), is a determined and powerful advocacy lawyer. After a series of horrific terrorist attacks, Palmer and his team of advisors, Karen Hayes (Jayne Atkinson) and Thomas Lennox (Peter MacNicol) as well as CTU colleagues Chloe O'Brian (Mary Lynn Rajskub), Curtis Manning (Roger Cross) and Bill Buchanan (James Morrison) begin an unthinkable, nail-biting day.
Taken from Dark Horizons