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Acting
September 5, 1939
Albany, New York, USA
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.

Whitney Vance
2022

Dr. Dix
2015

Gen. Hodges (voice) (uncredited)
2015

Dean Sanderson Sr.
2015

Williams
2014

Big Red
2014

Leonard Doc Blach
2014

President
2012

Dr. Dix
2012

Pop O'Hara
2012

as Whitney Vance

as Dr. Dix

as Gen. Hodges (voice) (uncredited)

as Dean Sanderson Sr.

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 Edward Grayson

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 Walter

as Peters

as Dr. Dix

as Michael Davis

as Billy Crumb

as Grove McCarthy

as Nicolas Mason

as Cal Brennan

as George Boyajian

as Col. Weldon

as The Judge

as James Heller

as Roger Thornhill

as Tom Kincaid

as Self

as Ron Lake

as Brady McKay

as Eugene Davis

as Dr. Kramer

as Older Sam Ryan

as Lewis Berryhill

as Carter

as Sergeant Joseph Turk
as Dr. Karl Sorenson

as President Hayes

as Greg Sumner

as Sen. Emmett Hunter

as Lawrence Kellerman

as Bernie Hobson
as Dr. Richard Ofshe

as Capt. Bob Pearson

as Nick Caldwell


as Dr. Harbuck

as William Devane

as Lt. Barrett

as Tom

as Benjamin Parker

as Harry Orwitz

as Lou Della Rosa

as Al Capone

as General Mark Suveg

as Daniel 'Dan' Fields

as Elliot McSwain

as Ed Bledsoe

as Host & Narrator

as Sheriff Jim Metts

as Black Jack Bouvier

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 Greg Sumner

as John

as Roy Warner, aka Steve Dupree

as Sgt. Milt Warden

as John Manly

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 John F. Kennedy - US President


as David Prine

as Earl Stokey

as Kilburn

as LT. Ashley

as Jock Fenner

as Jimmy Pilgrim

as The Lawyer

as Tom

as Pilot

as Dr. Ray Waltham

as Al Kordic


as Self

as Moss Stratton