
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…

The Circuit

Star Trek: The Next Generation - Redemption
as Gowron

Star Trek's Favorite Moments
as Himself

Roddenberry on Patrol
as Officer #2

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

The Omega Code
as Technician

Moonbase
as Karl Stark

Good Luck
as Bartender

Steel Frontier
as Evermore

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

The Shuttlepod Show
as Self · 1 ep.

A Captain's Log
as Self · 1 ep.

Numb3rs
as Kurt Delock (uncredited) · 1 ep.

Star Trek: Enterprise
as Kago-Darr · 1 ep.

The Guardian
as Quinn Jankowski · 1 ep.

Star Trek: Deep Space Nine
as Countman · 1 ep.

NYPD Blue
as Calvin James / Carl Shivers · 1 ep.

Dr. Quinn, Medicine Woman
as Rudy Exner · 1 ep.

Walker, Texas Ranger
as Mark Dunford · 1 ep.

The Adventures of Brisco County, Jr.
as Sketch · 1 ep.
The Omega Code
1999