Biography
Michael O'Neill is an American character actor. He is known for his recurring role as Secret Service Agent Ron Butterfield in the NBC political drama The West Wing.
Source: Wikipedia · CC BY-SA
Filmography50+ titles
The Resident
The Mentalist
Sons of Anarchy
The X-Files
Criminal Minds
The West Wing
This Is Us
Grey's Anatomy
Bates Motel
Fringe
Prison Break
Ghost Whisperer
Fire Country
S.W.A.T.
Dallas Buyers Club
Rizzoli & Isles
Boston Legal
11.22.63
24
ER
Tom Clancy's Jack Ryan
CSI: Miami
Roswell
Tracker
Rectify
Leverage
Commander in Chief
NCIS
The Practice
Victim of Love: The Shannon Mohr Story
On Yoga: The Architecture of Peace
NCIS: Los Angeles
Army Wives
Air
The Unit
Messiah
Shooter
Scandal
Secondhand Lions
Without a Trace
Crossing Jordan
JAG
Manhattan
Seabiscuit
The Emperor's Club
Traffic
Diagnosis: Murder
Lorenzo's Oil
The Glades
Flashforward