Where to watch Michael O'Neill in the UK
Find every Michael O'Neill film and TV show streaming, free, or available to rent in the UK. Updated daily — verified 3 August 2026.
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. He starred in the Season Six 2 part Finale of Grey's Anatomy as the broken wido…
Michael O'Neill films streaming in the UK
Most-watched films featuring Michael O'Neill, available across UK streaming, rent and buy.
Michael O'Neill TV shows streaming in the UK
Selected TV credits featuring Michael O'Neill.
Full filmography
Every credit ScreenSearch indexes for Michael O'Neill, ranked by popularity. Click any title for UK streaming, rent and buy options.
- The Mentalist (2008) as Sheriff Nelson
- Grey's Anatomy (2005) as Gary Clark
- NCIS (2003) as Riley McCallister
- Criminal Minds (2005) as Det. Yarbough
- Prison Break (2005) as Herb Stanton
- S.W.A.T. (2017) as Carl Luca
- CSI: Miami (2002) as Jerry Blackburn
- 24 (2001) as Richard Walsh
- The West Wing (1999) as Ron Butterfield
- Tracker (2024) as Buck Avery
- The X-Files (1993) as Patrol Captain Van Gelder
- War of the Worlds (2025) as Secretary of Defense Walter Crystal
- NCIS: Los Angeles (2009) as Ret. U.S. Army General Richard Collins
- Sons of Anarchy (2008) as Anthony Franklin
- JAG (1995) as Commander Bradley
- Chicago Hope (1994) as Bill Wyzinski
- Fringe (2008) as Sheriff Velchik
- Ghost Whisperer (2005) as Nolan
- ER (1994) as Col. Ken Kilner
- Tom Clancy's Jack Ryan (2018) as Senator Mitchell Chapin
- Without a Trace (2002) as Thomas Shannon
- Scandal (2012) as Lonnie Mencken
- Rizzoli & Isles (2010) as Jonathan McKnight
- The Resident (2018) as Joshua Williams
- Boston Legal (2004) as Dr. Robert McLean
- Diagnosis: Murder (1993) as Sheriff Buck O'Hara
- Army Wives (2007) as Reverend Bankerd
- This Is Us (2016) as Arlo
- Numb3rs (2005) as Boyd Keene
- Fire Country (2022) as Harlan Denbo
- Crossing Jordan (2001) as Chris Benz
- The Practice (1997) as Judge Robert Temple
- Bates Motel (2013) as Nick Ford
- Leverage (2008) as Judge Roy
- The Unit (2006) as Ron Cheals
- Boston Public (2000) as Dr. Bernard Colbert
- The Glades (2010) as Trent Staley
- Millennium (1996) as County Prosecutor Calvin Smith
- Shooter (2016) as Ray Brooks
- Roswell (1999) as Philip Evans
Michael O'Neill — FAQ
Where can I watch Michael O'Neill films in the UK?
Michael O'Neill's films and TV shows are available across UK streaming services. Click any title in the filmography below to see exactly which UK service has it — Netflix, Amazon Prime Video, Disney+, Apple TV+, BBC iPlayer, ITVX, NOW, Sky, MUBI and more — updated daily.
What are Michael O'Neill's most popular films?
Most-watched Michael O'Neill films currently: War of the Worlds (2025), Air (2023), Traffic (2000), Transformers (2007), Dallas Buyers Club (2013).
What TV shows has Michael O'Neill appeared in?
Selected TV credits: The Mentalist (2008), Grey's Anatomy (2005), NCIS (2003), Criminal Minds (2005), Prison Break (2005).
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