Summary

Chief Miles O’Brien ( Colm Meaney ) has a fairly unique Starfleet social status , beingStar Trek ’s most notable Chief Petty Officer . Colm Meaney appeared as Miles O’Brien in 212 episode acrossStar Trek : The Next GenerationandStar Trek : Deep Space Nine , and became a fan preferred fibre . O’Brien was an everyman grapheme who was more grounded and relatable than some of his high - achieving Starfleet colleagues . This is largely down toColm Meaney ’s acting in the role , but also due to O’Brien ’s non - commissioned status , meaning that , as Chief Petty Officer , he enlisted as a civilian , and did n’t come up through Starfleet Academy .

While Miles O’Brien is known as the " Chief " , the fictitious character had a slightly discrepant social rank history during the early days ofStar Trek : The Next coevals . Various early episodes ofTNGhave O’Brien get into an ensign ’s radar target or referred to as lieutenant . It was n’t until the installment " fellowship " thatTNGfinally confirm O’Brien’srank as a Starfleet military officer . " crime syndicate " author Ronald D. Moore explained why he decided to make O’Brien a Chief Petty Officer in a 1998AOL chat :

" He officially became a Chief Petty Officer in " Family " when I need he and Worf ’s adoptive Padre to both be non - coms in dividing line to Worf . Making him an enlisted man seemed to give us another people of color in the show and to spread out up another window into Starfleet that we had n’t explored before . "

Chief Miles O’Brien’s best TNG and DS9 episodes

Miles O’Brien is " the most important man in Star Trek history , " played by one of its best actors , as proved by O’Brien ’s best TNG and DS9 episode .

Chief O’Brien’s Starfleet Rank Explained

As confirm in Star Trek : The Next Generation time of year 4 , episode 2 , " Family " , Miles O’Brien is a Chief Petty Officer . Like Starfleet ’s other ranks , the Chief Petty Officer has its origins in the United States Navy . In both the Navy and Starfleet , a Chief Petty Officer is one of the most senior non - commissioned ship’s officer , and promotional material to the role is based on things like functioning , prison term in servicing , and exceptional evaluation wads . For that understanding , Chief Petty Officers loosely have a heap more hands - on experience than Lieutenants and Ensigns , giving them a degree of seniority and responsibility .

Chief O’Brien shares something in common withStar Trek : The Original Series ' Janice Rand ( Grace Lee Whitney ) as she was the Enterprise ’s car transporter chief inStar Trek : The Motion Picture .

Miles O’Brien ’s years of experience as CPO is why he was selected to become Deep Space Nine ’s Chief of Operations . Chief O’Brien had a bigger function as aStar Trek : Deep Space Ninecharacterthan he did inStar Trek : The Next Generation . Indeed , O’Brien ’s move to DS9 represented a promotion from Chief Petty Officer to Senior Chief Petty Officer , the second - high non - commissioned rank after Master Chief of Operations . As a perk of his non - licensed condition , O’Brien was also able-bodied to skip drill formal dinners like the one he hoped to miss inDS9season 3 , instalment 11 , " Past Tense , Part I " .

Robin Curtis and Kirstie Alley as Lt. Saavik in Star Trek.

Surprising Star Trek Officers Who Outrank DS9’s Chief O’Brien

Due to the differences between commission and non - commissioned Starfleet officers , Chief O’Brien is outrank by some surprisingStar Trekcharacters . InStar Trek : Deep Space Nineseason 3 , episode 25 , " Facets " , O’Brien muses that , should Nog ( Aron Eisenberg ) alum from Starfleet Academy , then the youthful Ferengi officeholder will outrank him . While that was technically true , Nog always showed due obligingness to O’Brien , referring to him as " Sir " throughoutDS9 . Nog ’s awe for O’Brien is understandable , apply his positive impact on the professional life of Nog ’s male parent , Rom ( Max Grodenchik ) .

Even before they were all advertize to Lieutenant Junior Grade inStar Trek : Lower Decksseason 4 , Beckett Mariner ( Tawny Newsome ) and Brad Boimler ( Jack Quaid ) would have outrank O’Brien when they were Ensigns . However , the veneration shown toChief O’Brien ’s flit boardinLower deck ' crossover withStar Trek : Deep Space Nineproves that they too would also observe Miles ' cognition and experience . After all , it ’s alsoLower Decksthat jokingly stated that Chief O’Brien was the most authoritative man in the history ofStar Trek . Not big for a non - commissioned military officer .

All episode of Star Trek : Deep Space Nine are available to pour on Paramount+ .

Picard and Riker in season 1

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Cast

Star Trek : Deep Space Nine , also known as DS9 , is the fourth serial in the long - running Sci - Fi dealership , Star Trek . DS9 was created by Rick Berman and Michael Piller , and stars Avery Brooks , René Auberjonois , Terry Farrell , and Cirroc Lofton . This particular series follows a group of mortal in a space post near a planet called Bajor .

Collage of Colm Meaney as Miles O’Brien in his Star Trek: TNG uniform and his grey DS9 uniform.

Nog holds a self-sealing stem bolt while Chief O’Brien looks skeptical

Star Trek Deep Space Nine Poster

Star Trek: Deep Space Nine, also known as DS9, is the fourth series in the long-running Sci-Fi franchise, Star Trek. DS9 was created by Rick Berman and Michael Piller, and stars Avery Brooks, René Auberjonois, Terry Farrell, and Cirroc Lofton. This particular series follows a group of individuals in a space station near a planet called Bajor.

Headshot Of Avery Brooks

Headshot Of Rene Auberjonois In The ABC Disney Television Group

Star Trek: The Next Generation

Star Trek: Deep Space Nine