
William Devane
Acting
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.
Known For

2003
NCIS
2003 · tv

1962
The Tonight Show Starring Johnny Carson
1962 · tv

1997
Stargate SG-1
1997 · tv

2001
24
2001 · tv

1993
The X-Files
1993 · tv

2014
Interstellar
2014 · movie

2006
Psych
2006 · tv

1999
The West Wing
1999 · tv

1967
Mannix
1967 · tv

1979
Knots Landing
1979 · tv

1993
Lois & Clark: The New Adventures of Superman
1993 · tv

1994
Touched by an Angel
1994 · tv

1996
Early Edition
1996 · tv

2011
Revenge
2011 · tv

1969
Medical Center
1969 · tv

2012
The Dark Knight Rises
2012 · movie

1955
Gunsmoke
1955 · tv

2022
Bosch: Legacy
2022 · tv

2000
Hollow Man
2000 · movie

2006
What About Brian
2006 · tv

2015
The Grinder
2015 · tv

1995
Hope and Gloria
1995 · tv

1999
Payback
1999 · movie

2007
Notes from the Underbelly
2007 · tv

2000
The Michael Richards Show
2000 · tv

1976
Marathon Man
1976 · movie

2006
Crumbs
2006 · tv

1978
Black Beauty
1978 · tv

1991
A Woman Named Jackie
1991 · tv

1973
The Snoop Sisters
1973 · tv