
Actor · 35 credits
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.

Bosch: Legacy
2022
Whitney Vance

The Grinder
2015
Dean Sanderson Sr.

Revenge
2011
Edward Grayson

What About Brian
2006
Michael Davis

Crumbs
2006
Billy Crumb

24
2001
James Heller

The Michael Richards Show
2000
Brady McKay

The West Wing
1999
Lewis Berryhill

Knots Landing: Back to the Cul-de-Sac
1997
Greg Sumner

Early Edition
1996
Bernie Hobson

Hope and Gloria
1995
William Devane

Touched by an Angel
1994
Benjamin Parker

Phenom
1993
Lou Della Rosa

A Woman Named Jackie
1991
Black Jack Bouvier

American Playhouse
1982
Tom Wetherly

Knots Landing
1979
Greg Sumner

From Here to Eternity
1979
Sgt. Milt Warden

Black Beauty
1978
John Manly

The Snoop Sisters
1973
David Prine

Medical Center
1969
Dr. Ray Waltham

Hawaii Five-O
1969
Fallon

Mannix
1967
Al Kordic

Ironside
1967
Smiley

Gunsmoke
1955
Moss Stratton