Michael O'Neill

Michael O'Neill

Person

Michael O'Neill

Actor 1947-05-29 Montgomery, Alabama, USA

From Wikipedia, the free encyclopedia. Michael O'Neill (born May 29, 1951) is an American actor. With a career stretching through three decades, he usually portrays senior law enforcement or military officers. He is perhaps best known for his role as Special agent Ron Butterfield, the head of President Josiah Bartlet's Secret Service detail, on The West Wing. He played CTU Administrative Director Richard Walsh in the first two episodes of 24. He played Sgt. Maj. Ron Cheals in the CBS action-drama series The Unit....

Known for

FILMOGRAPHY

Data from TMDB

Transformers

Transformers

2007 · Tom Banacheck

Grey's Anatomy

Grey's Anatomy

2005 · Gary Clark

Dallas Buyers Club

Dallas Buyers Club

2013 · Richard Barkley

Prison Break

Prison Break

2005 · Herb Stanton

The Mentalist

The Mentalist

2008 · Sheriff Nelson

Criminal Minds

Criminal Minds

2005 · Det. Yarbough

The X-Files

The X-Files

1993 · Patrol Captain Van Gelder

Sons of Anarchy

Sons of Anarchy

2008 · Anthony Franklin

Fringe

Fringe

2008 · Sheriff Velchik

J. Edgar

J. Edgar

2011 · Senator McKellar

NCIS

NCIS

2003 · Riley McCallister

Traffic

Traffic

2000 · Lawyer Rodman

Air

Air

2023 · Joe Dean

Green Zone

Green Zone

2010 · Colonel Bethel

Dreamcatcher

Dreamcatcher

2003 · Gen. Matheson

Ghost Whisperer

Ghost Whisperer

2005 · Nolan

Tom Clancy's Jack Ryan

Tom Clancy's Jack Ryan

2018 · Senator Mitchell Chapin

24

2001 · Richard Walsh

Bates Motel

Bates Motel

2013 · Nick Ford