
Colm J. Meaney (born May 30, 1953) is an Irish actor. He is widely known for playing Chief Miles O'Brien in Star Trek: The Next Generation and Star Trek: Deep Space Nine. He is second only to Michael Dorn in most appearances in Star Trek episodes. He has guest starred on many other television shows, from Law & Order to The Simpsons, and has a significant career in motion pictures.

Law & Order
TV • 1990

The Simpsons
TV • 1989

Law & Order: Criminal Intent
TV • 2001

Star Trek: The Next Generation
TV • 1987

MacGyver
TV • 1985

Star Trek: Deep Space Nine
TV • 1993

Stargate Atlantis
TV • 2004

It's Always Sunny in Philadelphia
TV • 2005

Moonlighting
TV • 1985

Dr. Quinn, Medicine Woman
TV • 1993

Gargoyles
TV • 1994

The Unit
TV • 2006

Hell on Wheels
TV • 2011

Tales from the Darkside
TV • 1984

Gangs of London
TV • 2020

Men in Trees
TV • 2006

The Serpent Queen
TV • 2022

Mercy
TV • 2009