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Acting
Robert O'Reilly (born March 25, 1950, in New York City) is an American film, stage, and television actor and director. He is best known for his role as Chancellor Gowron, the leader of the Klingon Empire, in the Star Trek franchise—particularly on Star Trek: The Next Generation and Star Trek: Deep Space Nine. O'Reilly’s career spans over 100 films and TV episodes, often portraying antagonistic or villainous characters. He appeared in series like Cheers, Knight Rider, MacGyver, NYPD Blue, and films such as The Mask. He has also performed on Broadway and at Carnegie Hall. Notably, he received a Drama-Logue Award in 1981 for directing the play Getting Out. His first Star Trek appearance was in The Next Generation episode "Manhunt," but he is most recognized for playing Gowron from the episode "Reunion" onward, across several Next Generation and Deep Space Nine episodes, and related media including video games. O'Reilly drew inspiration for Gowron from Shakespearean characters, notably Edmund from King Lear. He has reprised Gowron in various Star Trek-related events and conventions. In theater, he has appeared in Broadway and off-Broadway productions, including The Tavern, The Promise, and played roles like Edmund in King Lear. He has been active with the Colony Theatre Company in Burbank, California, both as an actor and director. He is married to Judy O'Reilly, with whom he has triplet sons. His hobbies include golf and baseball. Robert O'Reilly retired from acting but remains involved in the Star Trek community through conventions and voice roles

The Shuttlepod Show
as Self

A Captain's Log
as Self

The Circuit

Star Trek: The Next Generation - Redemption
as Gowron

Numb3rs
as Kurt Delock (uncredited)

Star Trek's Favorite Moments
as Self

Roddenberry on Patrol
as Officer #2

Star Trek: Enterprise
as Kago-Darr

The Guardian
as Quinn Jankowski

The Omega Code
as Technician

Candyman: Day of the Dead
as L.V. Sacco

Moonbase
as Karl Stark

Good Luck
as Bartender

Star Trek: Deep Space Nine - The Way of the Warrior
as Gowron

Steel Frontier
as Evermore

The Mask
as The Figure

NYPD Blue
as Calvin James / Carl Shivers

The Adventures of Brisco County, Jr.
as Sketch

Walker, Texas Ranger
as Mark Dunford

Star Trek: Deep Space Nine
as Gowron

Dr. Quinn, Medicine Woman
as Rudy Exner

Desert Kickboxer
as Paul

Party Plane
as Air Traffic Controller

Whore
as Younger Man in Car

Under Surveillance
as Whitey

Cop Rock

The Flash
as Victor Kelso

By Dawn's Early Light
as FEMA Radioman

Star Trek: The Next Generation
as Gowron

Sledge Hammer!
as Assassin

MacGyver
as Curt Neilson

The Equalizer
as Fur Collar Man

The Steel Collar Man
as Johnny

Otherworld
as Drill Instructor

Crazy like a Fox

Murder, She Wrote
as A.J. Grodin

Highway to Heaven

Hunter
as Willem Sunderson

Scarecrow and Mrs. King

Manimal

Trauma Center

Hardcastle and McCormick

Voyagers!

Cheers
as Ed Fogerty

Knight Rider
as Jake Simpson

T. J. Hooker
as Jack Riker

Falcon Crest
as Mr. Kumar

Simon & Simon

The Fall Guy

Archie Bunker's Place

The Incredible Hulk

CHiPs
as Ryan