Biografía

Is the only actor to appear in 14 different seasons of "Star Trek," more than any other actor (Viaje a las estrellas: La nueva generación (1987), seasons 1 through 7, and Star Trek: Deep Space Nine (1993), seasons 1 through 7).

Meaney and Star Trek wife Rosalind Chao remained good friends after Star Trek: Deep Space Nine (1993) ended. Chao attended Meaney's 2007 wedding to his second (real-life) wife Ines Glorian.

Along with Jonathan Frakes, Marina Sirtis, Michael Dorn, he is one of only four actors to appear in the finales of two different "Star Trek" series: Viaje a las estrellas: La nueva generación (1987) and Star Trek: Deep Space Nine (1993).

His role and rank in the Star Trek series took several years to evolve. Beginning as a crewman in Viaje a las estrellas: La nueva generación (1987) the character of Miles O'Brien then graduated to the transporter room and was briefly a lieutenant before being made a chief petty officer, thus joining one of the very few recurring enlisted roles in Star Trek (Mr Leslie and Yeoman Rand being two others from the original series). Transferring to Star Trek: Deep Space Nine (1993), the O'Brien character mutated the first two seasons between a warrant officer and an chief warrant officer before again becoming enlisted as a senior chief petty officer around the fourth season. In the last seasons of Star Trek: Deep Space Nine (1993), the rank of senior chief was once and for all confirmed and O'Brien became the first-ever Star Trek enlisted character to be given an enlisted rank insignia collar pin.

Was offered the chance to direct an episode of Star Trek: Deep Space Nine like his DS9 co stars Avery Brooks, Rene Auberjonois, Alexander Siddig, Michael Dorn and Andrew Robinson, but declined.