Michael O'Neill

Actor

May 29, 1947 (79 years)

Montgomery, Alabama, USA

Biography

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-dr…

Filmography

8.2

Grey's Anatomy

Gary Clark

Follows the personal and professional lives of a group of doctors at Seattle's Grey Sloan Memorial Hospital.

8.4

The Mentalist

Sheriff Nelson

Patrick Jane, a former celebrity psychic medium, uses his razor sharp skills of observation and expertise at "reading" people to solve serious crimes with the California Bureau of Investigation.

7.6

NCIS

Riley McCallister

From murder and espionage to terrorism and stolen submarines, a team of special agents investigates any crime that has any connection to Navy and Marine Corps personnel, regardless of rank or position.

8.3

Criminal Minds

Det. Yarbough

An elite team of FBI profilers analyze the country's most twisted criminal minds, anticipating their next moves before they strike again. The Behavioral Analysis Unit's most experienced agent is David Rossi, a founding member of the BAU who returns to help the team solve new cases.

8.0

S.W.A.T.

Carl Luca

A Los Angeles S.W.A.T. sergeant is assigned to lead a highly skilled unit in the community where he grew up. Torn between loyalty to the streets, where the cops are sometimes the enemy, and allegiance to his brothers in blue, he strategically straddles the two worlds.

8.1

Prison Break

Herb Stanton

Due to a political conspiracy, an innocent man is sent to death row and his only hope is his brother, who makes it his mission to deliberately get himself sent to the same prison in order to break the both of them out, from the inside out.

7.7

CSI: Miami

Jerry Blackburn

The show follows Crime Scene Investigators working for the Miami-Dade Police Department as they use physical evidence, similar to their Las Vegas counterparts, to solve grisly murders. The series mixes deduction, gritty subject matter, and character-driven drama in the same vein as the original series in the CSI franchise, except that the Miami CSIs are cops first, scientists second.

7.8

24

Richard Welsh

Counterterrorism agent Jack Bauer fights the bad guys of the world, a day at a time. With each week's episode unfolding in real-time, "24" covers a single day in the life of Bauer each season.

7.5

Tracker

Buck Avery

Lone-wolf survivalist Colter Shaw roams the country as a “reward seeker,” using his expert tracking skills to help private citizens and law enforcement solve all manner of mysteries while contending with his own fractured family.

8.4

The X-Files

Patrol Captain Van Gelder

The exploits of FBI Special Agents Fox Mulder and Dana Scully who investigate X-Files: marginalized, unsolved cases involving paranormal phenomena. Mulder believes in the existence of aliens and the paranormal while Scully, a skeptic, is assigned to make scientific analyses of Mulder's discoveries that debunk Mulder's work and thus return him to mainstream cases.

8.4

Sons of Anarchy

Anthony Franklin

The Sons of Anarchy (SOA) are an outlaw motorcycle club with many charters in the United States and overseas. The show focused on the original and founding charter, Sons of Anarchy Motorcycle Club, Redwood Original, often referred to by the acronym SAMCRO, Sam Crow, or simply Redwood Charter. The charter operates both legal and illegal businesses in the small town of Charming, California. They combine gun-running and a garage, and involvement in porn film industry. Clay, the charter president, likes it old school and violent; while Jax, his stepson and the club's VP, has thoughts about changing the way things are done. Their conflict has effects on both the club and their personal relationship, especially when Jax goes on a personal quest to cleanse the SAMCRO name and image.

7.5

NCIS: Los Angeles

Ret. U.S. Army General Richard Collins

The exploits of the Los Angeles–based Office of Special Projects (OSP), an elite division of the Naval Criminal Investigative Service that specializes in undercover assignments.

7.2

Crossing Jordan

Chris Benz

Crossing Jordan is an American television crime/drama series that stars Jill Hennessy as Jordan Cavanaugh, M.D., a crime-solving forensic pathologist employed in the Massachusetts Office of the Chief Medical Examiner.

7.2

Without a Trace

Thomas Shannon

The series follows the ventures of a Missing Persons Unit of the FBI in New York City.

4.1

War of the Worlds

Secretary of Defense Walter Crystal

Will Radford is a top analyst for Homeland Security who tracks potential threats through a mass surveillance program, until one day an attack by an unknown entity leads him to question whether the government is hiding something from him... and from the rest of the world.

7.8

ER

Col. Ken Kilner

ER explores the inner workings of an urban teaching hospital and the critical issues faced by the dedicated physicians and staff of its overburdened emergency room.

8.1

Fringe

Sheriff Velchik

FBI Special Agent Olivia Dunham, brilliant but formerly institutionalized scientist Walter Bishop and his scheming, reluctant son Peter uncover a deadly mystery involving a series of unbelievable events and realize they may be a part of a larger, more disturbing pattern that blurs the line between science fiction and technology.

8.3

The West Wing

Ron Butterfield

The West Wing provides a glimpse into presidential politics in the nation's capital as it tells the stories of the members of a fictional presidential administration. These interesting characters have humor and dedication that touches the heart while the politics that they discuss touch on everyday life.

8.1

Ghost Whisperer

Nolan

Newlywed Melinda Gordon tries to help the dead communicate with loved ones, but sometimes the messages she receives are intense and confusing. Most of Melinda's efforts involve resolving conflicts that are preventing the spirits from passing over.

7.7

Tom Clancy's Jack Ryan

Senator Mitchell Chapin

When CIA analyst Jack Ryan stumbles upon a suspicious series of bank transfers his search for answers pulls him from the safety of his desk job and catapults him into a deadly game of cat and mouse throughout Europe and the Middle East, with a rising terrorist figurehead preparing for a massive attack against the US and her allies.