

Cast & creator
Best known for Star Trek: The Next Generation, Star Trek: The Next Generation, Cheers
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
Also known as: Bobby Reilly
17
film credits
43
television credits
59
1977–2024 · acting roles
6.7
average across scored titles
Signature credits
Across film & television
Showing 60 of 60 credits

Gowron
1987
Scarface
1987
Ed Fogerty
1982
Gowron
1993
Countman
1993
Curt Neilson
1985
Mr. Kumar
1981
Kago-Darr
2001
Calvin James / Carl Shivers
1993
Kurt Delock (uncredited)
2005
A.J. Grodin
1984
Stephen Ridgely
1984
Jake Simpson
1982
Snyder
1982
Rudy Exner
1993
Jack Riker
1982
Sheehan
1982


Quinn Jankowski
2001

Mark Dunford
1993
Fur Collar Man
1985
Chance
1985


Willem Sunderson
1984

Assassin
1986
Victor Kelso
1990
The Figure
1994
Ryan
1977


Sketch
1993

Self
2021
Self
2022



Sebastian
1981
Drill Instructor
1985
L.V. Sacco
1999
Younger Man in Car
1991
FEMA Radioman
1990
Camera Operator
2024
Technician
1999
Evermore
1995
Paul
1992
Johnny
1985
Gowron
2013
Self
2004
Officer Kevin Wegley
1990
Gowron
1995
Whitey
1991

Bartender
1997
Karl Stark
1997
Air Traffic Controller
1991