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Michael O'Neill

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Biography

Gender

Male

Credits

Recurring Role (5)

Role
- The Unit
  Ron Cheals
  - S 2: Ep 23 Paradise Lost
    5/8/07
  - S 1: Ep 11 Exposure
    5/9/06
  - S 1: Ep 1 First Responders
    3/7/06
- The West Wing
  Ron Butterfield
  - S 7: Ep 22 Tomorrow
    5/14/06
  - S 7: Ep 20 The Last Hurrah
    4/30/06
  - S 5: Ep 20 No Exit
    4/28/04
  - S 5: Ep 3 Jefferson Lives
    10/8/03
  - S 4: Ep 23 Twenty Five
    5/14/03
  - + 11 More Credits
- The Unit
  Sgt. Ron Cheals
  - S 1: Ep 8 SERE
    4/25/06
  - S 1: Ep 7 Dedication
    4/18/06
- Days Of Our Lives
  Father Timothy Jansen
  - S 30: Ep 156 Ep. #7563
    7/5/95
  - S 30: Ep 103 Ep. #7510
    4/18/95
  - S 30: Ep 98 Ep. #7505
    4/11/95
  - S 30: Ep 97 Ep. #7504
    4/10/95
  - S 30: Ep 36 Ep. #7443
    1/5/95
  - + 3 More Credits
- The Nine
  Pete Burton
  - S 1: Ep 10 The Inside Man
  - S 1: Ep 2 Heroes Welcome
    10/11/06
  - S 1: Ep 1 Pilot
    10/4/06
Guest Star (52)

Role
- NCIS
  Former NCIS Special Agent Riley McCallister
  - S 9: Ep 14 Life Before His Eyes
    2/7/12
  - S 8: Ep 9 Enemies Domestic
    11/23/10
  - S 8: Ep 8 Enemies Foreign
    11/16/10
- CSI: Miami
  Jerry Wilkinson
  - S 10: Ep 12 Friendly Fire
    1/8/12
- Prime Suspect
  Commander Adam Wells
  - S 1: Ep 6 Shame
    11/3/11
- The Glades
  Reverend Trent
  - S 2: Ep 8 Second Skin
    7/31/11
- Law & Order: Los Angeles
  Jeb Monroe
  - S 1: Ep 1 Hollywood
    9/29/10
- Miami Medical
  Dr. Bruce Kaye
  - S 1: Ep 12 Down to the Bone
    6/25/10
  - S 1: Ep 2 88 Seconds
    4/9/10
- Grey's Anatomy
  Gary Clark
  - S 6: Ep 23 Sanctuary (1)
    5/20/10
- Fringe
  Sheriff Velchik
  - S 2: Ep 12 Johari Window
    1/14/10
- Numb3rs
  Boyd Keene
  - S 6: Ep 11 Scratch
    1/8/10
- Sons of Anarchy
  Judge Anthony Franklin
  - S 2: Ep 9 Fa Guan
    11/3/09
- FlashForward
  Director Keller
  - S 1: Ep 5 Gimme Some Truth
    10/22/09
- Army Wives
  Reverend Bankard
  - S 3: Ep 6 Family Readiness
    7/12/09
  - S 3: Ep 5 Disengagement
    7/5/09
- Ghost Whisperer
  Male Ghost
  - S 4: Ep 16 Ghost Busted
    2/27/09
- Leverage
  Judge Roy
  - S 1: Ep 5 The Bank Shot Job
    12/30/08
- My Own Worst Enemy
  Alexander DeSantos
  - S 1: Ep 8 Love In All The Wrong Places
    12/8/08
- Prison Break
  Herb Stanton
  - S 4: Ep 13 Deal Or No Deal
    12/1/08
  - S 4: Ep 12 Selfless
    11/24/08
  - S 4: Ep 3 Shut Down
    9/8/08
- The Mentalist
  Sheriff Nelson
  - S 1: Ep 5 Redwood
    10/28/08
- Women's Murder Club
  Agent Ted Thorne
  - S 1: Ep 13 Never Tell
    5/13/08
- Criminal Minds
  Det. Frank Yarborough
  - S 3: Ep 6 About Face
    10/31/07
- K-Ville
  Father Dennehy
  - S 1: Ep 5 Critical Mass
    10/22/07
- Lincoln Heights
  Captain
  - S 1: Ep 2 Suspicion
    1/15/07
- 3 Lbs.
  James Wills
  - S 1: Ep 1 Lost For Words
    11/14/06
  - S 1: Ep 0 Unaired Pilot
- The Unit
  Sergeant Ron Cheals
  - S 2: Ep 7 Off the Meter
    11/7/06
- Close to Home
  Don Wheeler
  - S 1: Ep 13 The Rapist Next Door
    1/27/06
- Commander In Chief
  Congressman Wilcox
  - S 1: Ep 3 First Strike
    10/11/05
- JAG
  Maj. Gen. Harold Rossing
  - S 10: Ep 22 Fair Winds and Following Seas
    4/29/05
- ER
  Col. Ken Kilner
  - S 11: Ep 16 Here and There
    2/24/05
- Cold Case
  Warren Cousins (2005)
  - S 2: Ep 14 Revolution
    2/20/05
- Boston Legal
  Dr. Robert McLean
  - S 1: Ep 13 It Girls and Beyond
    1/23/05
- LAX
  Alonso Mathers
  - S 1: Ep 6 Unscheduled Arrivals
    10/18/04
- Crossing Jordan
  Chris Benz
  - S 4: Ep 2 Out of Sight
    10/3/04
- Judging Amy
  Dave Sherman
  - S 5: Ep 22 My Little Runaway
    5/11/04
- The Practice
  Judge Robert Temple
  - S 8: Ep 11 Police State
    1/11/04
- Carnivale
  Sheriff Lyle Donovan (uncredited)
  - S 1: Ep 3 Tipton
    9/28/03
- Presidio Med
  Guest Star
  - S 1: Ep 11 Breathless
    1/24/03
- Without a Trace
  Thomas Shannon
  - S 1: Ep 6 Silent Partner
    10/31/02
- Ally McBeal
  Dr. Colbert
  - S 5: Ep 21 All of Me
    5/13/02
- Boston Public
  Dr. Bernard Colbert
  - S 2: Ep 9 Chapter Thirty-One
    1/14/02
  - S 2: Ep 6 Chapter Twenty-Eight
    12/3/01
  - S 2: Ep 5 Chapter Twenty-Seven
    11/26/01
  - S 2: Ep 2 Chapter Twenty-Four
    11/5/01
- 24
  Richard Walsh
  - S 1: Ep 2 Day 1: 1:00 A.M. - 2:00 A.M.
    11/13/01
  - S 1: Ep 1 Day 1: 12:00 A.M. - 1:00 A.M.
    11/6/01
- Diagnosis Murder
  Caleb Mcaig
  - S 8: Ep 19 No Good Deed
    4/27/01
- NYPD Blue
  Capt. Chuck Dowling
  - S 8: Ep 11 Peeping Tommy
    3/20/01
- Chicago Hope
  Bill Wyzinski
  - S 6: Ep 21 Everybody's Special at Chicago Hope
    4/27/00
- Roswell
  Phillip Evans
  - S 1: Ep 2 The Morning After
    10/13/99
- JAG
  Cmdr. Bradley
  - S 4: Ep 18 Shakedown
    3/30/99
- The X-Files
  Patrol Captain
  - S 6: Ep 2 Drive
    11/15/98
- Mercy Point
  Trevor Kelly
  - S 1: Ep 3 Last Resort
    10/20/98
- Millennium
  County Prosecutor Calvin Smith
  - S 1: Ep 16 Covenant
    3/21/97
- The Pretender
  Captain Harrigan
  - S 1: Ep 10 The Better Part Of Valor
    1/11/97
- The Cape (1997)
  Keith Mason
  - S 1: Ep 10 The Need To Know
    11/4/96
- One West Waikiki
  Wells
  - S 2: Ep 3 Manpower
    11/4/95
- Picket Fences
  Juror
  - S 2: Ep 18 System Down
    4/1/94
- L.A. Law
  Mr. Moran
  - S 7: Ep 5 My Friend Flicker
    11/19/92
Writer (1)

Role
- Play for Today
  Writer
  - S 2: Ep 7 Skin Deep
    11/25/71