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William Joseph Devane (born September 5, 1937) is an American film, television and theater actor, known for his role as Greg Sumner on the primetime soap opera Knots Landing and as James Heller on the Fox serial drama 24, the role he reprised in Live Another Day. He is also known for his supporting roles in films such as McCabe & Mrs. Miller, Family Plot), Marathon Man, Rolling Thunder and Space Cowboys. Devane began his acting career with the New York Shakespeare Festival where he performed in 15 plays. In 1966, Devane portrayed Robert F. Kennedy in the Off-Broadway spoof MacBird. He gained acclaim for his role as President John F. Kennedy in a television docudrama about the Cuban Missile Crisis, The Missiles of October, and again when he played blacklisted radio personality John Henry Faulk in the Emmy Award-winning TV movie Fear on Trial. He is widely known for his ten years as the ambitious and hardnosed politician-turned-corporate titan Greg Sumner on Knots Landing. In 1994, Devane appeared as Al Capone in Lois & Clark: The New Adventures of Superman in an episode entitled "That Old Gang of Mine". He also had a recurring role on the CBS show Early Edition as the lead character's father. Devane appeared in the films McCabe & Mrs. Miller; Lady Liberty; Family Plot; Marathon Man; Rolling Thunder; Yanks; Testament; Timestalkers; Forgotten Sins; Exception to the Rule; Payback; Hollow Man and Space Cowboys. Devane has played members of the Presidential Cabinet on two evening dramas. In 2004, on The West Wing, he guest-starred as the Secretary of State and potential Vice-Presidential nominee. Devane appeared in several scenes with Martin Sheen; they also appeared together as President John F. Kennedy and his brother Robert, respectively, 30 years earlier in The Missiles of October. In 2005, he joined the cast of 24 as Secretary of Defense James Heller for seasons 4, 5 and 6.
as Dr. Dix
as Gen. Hodges (voice) (uncredited)
as Williams
as Big Red
as Leonard Doc Blach
as President
as Dr. Dix
as Pop O'Hara
as Everett Morgan Gray
as Jake
as Dr. Dix
as Thompson
as Dr. Dix
as Dutch Hines
as judge Stanley Seeban
as Dr. Dix
as Alan Beckett
as Frank Carson
as President Henry Hayes
as Dr. Dix
as Dr. Dix
as Grove McCarthy
as Cal Brennan
as George Boyajian
as Col. Weldon
as The Judge
as Roger Thornhill
as Tom Kincaid
as Self
as Ron Lake
as Eugene Davis
as Dr. Kramer
as Older Sam Ryan
as Carter
as Dr. Karl Sorenson
as Emmett Hunter
as Lawrence Kellerman
as Dr. Richard Ofshe
as Capt. Bob Pearson
as Nick Caldwell
as Dr. Harbuck
as Lt. Barrett
as Tom
as Harry Orwitz
as Daniel 'Dan' Fields
as Elliot McSwain
as Ed Bledsoe
as Host & Narrator
as Sheriff Jim Metts
as Alex Brandt
as Dr. Chatham
as Col. Charnley
as Jack Litman
as Scott McKenzie
as Aaron Charney
as Tom Wetherly
as Coach Ball
as William Quinn
as Harry Langford
as Maj. Phil Clark
as Mayor Kirby T. Calo
as John
as Roy Warner, aka Steve Dupree
as Major Charles Rane
as Mike Leak
as Frank Brolen
as Janeway
as Arthur Adamson
as John Henry Faulk
as Asst. D.A. Jackson
as President John F. Kennedy
as Earl Stokey
as Kilburn
as LT. Ashley
as Jock Fenner
as Lawyer
as Jimmy Pilgrim
as Tom
as Pilot
