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For the mirror universe counterpart, see Miles O'Brien (mirror).

Miles Edward O'Brien was a 24th century Human man, born on September 1, 2331. He has served Starfleet as tactical officer aboard the USS Rutledge during the Federation-Cardassian War, transporter chief aboard the USS Enterprise-D from 2364 to 2369, chief of operations aboard starbase Deep Space 9 from 2369-2375, chief engineer of the USS Defiant from 2371 to 2375, and as an instructor at Starfleet Academy beginning in 2376. In 2383, O'Brien was assigned to oversee construction of the second Deep Space 9 space station.

BiographyEdit

Early lifeEdit

He has two brothers, but his mother was a fosterer who raised other children... possibly^{[citation needed]} "only" one boy and two girls. (DS9 episode: "Whispers"; DS9 novelization: Trials and Tribble-ations; TNG novel: Imbalance)

Miles, having grown up in a traditionally Irish setting was a very practical man. Most times (when feasible) he preferred an au natrel approach to food, recreation etc. rather than tech-even though that was a trade he specialized. (TNG episode: "The Wounded") His pragmatic, "everyman" approach carried over into his DS9 posting. As an enlisted crewman, he saw himself as an equal to his fellow crewmates superior or subordinate and disliked titles, such as "Sir". Always innovative and open to new concepts, O'Brien believed in engineering to be simple for the average Layman. (DS9 episodes: "Visionary", "Trials and Tribble-ations") His mother raised him to follow the advice about combining talking with eating, "You end up doing neither very well!" (DS9 episode: "The Die is Cast")

The RutledgeEdit

O'Brien was aboard the Rutledge during the Cardassian border conflicts and was present to witness the aftermath of the Massacre on Setlik III. (TNG episode: "The Wounded", DS9 novelization: Emissary, DS9 episode: "Paradise")

The Enterprise-DEdit

O'Brien then transferred to the USS Enterprise-D, where he served Captain Picard as a relief Flight controller during the Farpoint Mission. After the mission he served as part of the Enterprise's security and operation divisions, acting mainly as a Transporter chief.(TNG episodes: "Encounter at Farpoint", "All Good Things...", "Lonely Among Us", "Unnatural Selection", "The Best of Both Worlds, Part II")

Deep Space 9Edit

O'Brien was assigned to Deep Space 9 in 2369. (DS9 episode: "Emissary")

In early 2370, during a time of political upheaval on Cardassia, the crew of the Cardassian ship Swift Striker attempted to destroy Deep Space 9 by planting a bomb on its anti-matter reactor. O'Brien worked with Berat, a member of the Cardassian crew who had sought asylum on the station, to remove the bomb and then attached it to the Swift Striker, resulting in the ship's destruction. O'Brien was so impressed with Berat he offered him a position on the station, although Berat chose to return to Cardassia when the political situation changed. (DS9 novel: Betrayal)

Sometime prior to the Battle of Cardassia, Miles was approached to take the position of Professor of Optronic Systems Engineering at Starfleet Academy, a posting he took after some thought, breaking the news to his friend Julian Bashir in the midst of battle. (DS9 episode: "What You Leave Behind")

Starfleet Academy and the Corps of EngineersEdit

In 2376, while teaching at Starfleet Academy, O'Brien assisted the Starfleet Corps of Engineers when an alien artifact threatened to destroy San Francisco. (SCE eBook: Aftermath)

In September of 2376, Miles, his wife Keiko, and their children Molly and Kirayoshi, visited Joseph Sisko in New Orleans and later accompanied him to Bajor to attend the birth of his grand-daughter.

While in the Bajoran system, the Chief helped out his old friends on DS9 during the Parasite crisis, and attended Bajor's induction into the United Federation of Planets. (DS9 - Mission Gamma novels: Lesser Evil, Unity)

O'Brien was later detached to the Starfleet Corps of Engineers on the planet Cardassia as a part of the Federation's relief efforts, while Keiko was in charge of the planet's botanical renewal efforts following the Dominion War. (DS9 - Worlds of Deep Space Nine novel: Cardassia: The Lotus Flower, DS9 novel: The Never-Ending Sacrifice)

The new Deep Space 9Edit

In 2383, following the destruction of Deep Space 9, O'Brien was reassigned as chief engineer of both the ground-based facility that substituted for it and the construction of the replacement station. (ST - Typhon Pact novel: Raise the Dawn)

Alternate timelineEdit

An alternate Miles O'Brien existed in a parallel universe where, among many differences, the first Borg invasion was successful. Like his primary counterpart, this O'Brien was married to Keiko O'Brien and had a daughter, Molly, though they were killed in a Borg attack. (TNG comic: "The Worst of Both Worlds") When the crew of his Enterprise-D encountered the crew of the primary universe Enterprise, this O'Brien knocked out his counterpart and unsuccessfully attempted to take his place. (TNG comic: "And Death Shall Have No Dominion")

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AppendicesEdit

AppearancesEdit

2364

TNG episode: "Encounter at Farpoint" (First Appearance)
TNG episode & novelization: All Good Things (Anti-Time Past)
TNG - Double Helix novel: Infection
TNG episode: "Lonely Among Us"
TNG novel: The Captains' Honor

2365

TNG episode: "The Child"
TNG episode: "Where Silence Has Lease"
TNG episode: "Loud as a Whisper"
TNG episode: "Unnatural Selection"
TNG episode: "A Matter of Honor"
TNG novel: Power Hungry
TNG episode: "The Measure of a Man"
TNG novel: Metamorphosis
TNG episode: "The Dauphin"
TNG episode: "Contagion"
TNG episode: "The Royale"
TNG episode: "Time Squared"
TNG episode: "The Icarus Factor"
TNG episode: "Pen Pals"
TNG episode: "Q Who?"
TNG episode: "Up the Long Ladder"
TNG episode: "Manhunt"
TNG episode: "The Emissary"
TNG novel: A Call to Darkness
TNG episode: "Shades of Gray"

2366

TNG novel: A Rock and a Hard Place
TNG episode: "The Ensigns of Command"
TNG novel: Gulliver's Fugitives
TNG novel: Doomsday World
TNG episode: "The Bonding"
TNG episode: "Booby Trap"
TNG episode: "The Enemy"
TNG episode: "The Price" (voice only)
TNG short story: "Beginnings"
TNG novel: Exiles
TNG episode: "The Hunted"
TNG episode: "A Matter of Perspective"
TNG novel: Q-in-Law
TNG novel: The Eyes of the Beholders
TNG episode: "Tin Man"
TNG episode: "Hollow Pursuits"
TNG episode: "The Most Toys"
TNG episode: "Sarek"
TNG novel: Contamination
TNG episode: "Transfigurations"
TNG episode: "The Best of Both Worlds"

2367

TNG episode: "The Best of Both Worlds"
TNG episode: "Family"
TNG episode: "Brothers"
TNG novel: Reunion
TNG episode: "Remember Me"
TNG episode: "Legacy"
TNG short story: "See Spot Run"
TNG episode: "Data's Day"
TNG novel: Dark Mirror
TNG novel: Vendetta
TNG episode: "The Wounded"
TNG episode: "Clues"
TNG episode: "Night Terrors"
TNG episode: "Half a Life"
TNG novel: Imbalance
TNG episode: "The Mind's Eye"
TNG episode: "In Theory"

2368

2369

TNG episode: "Realm of Fear"
TNG short story: "Calculated Risk"
TNG novel: Here There Be Dragons
TNG episode: "Rascals"
TNG novel: A Fury Scorned
DS9 episode & novelization: Emissary
DS9 episode: "Past Prologue"
DS9 episode: "A Man Alone"
DS9 episode: "Babel"
DS9 episode: "Captive Pursuit"
DS9 novel: The Siege
DS9 episode: "Q-Less"
DS9 episode: "The Nagus"
DS9 episode: "Vortex"
DS9 video game: Crossroads of Time
DS9 novel: Bloodletter
DS9 episode: "Battle Lines"
DS9 episode: "The Storyteller"
DS9 episode: "Progress"
DS9 novel: Warped
DS9 episode: "If Wishes Were Horses"
DS9 episode: "The Forsaken"
DS9 episode: "Dramatis Personae"
DS9 episode: "Duet"
DS9 episode: "In the Hands of the Prophets"

2370

2371

DS9 episode & novelization: The Search
DS9 novel: Proud Helios
DS9 episode: "The House of Quark"
DS9 episode: "The Abandoned"
DS9 episode: "Civil Defense"
DS9 episode: "Meridian"
DS9 episode: "Defiant"
DS9 episode: "Fascination"
DS9 episode: "Past Tense, Part I"
DS9 episode: "Past Tense, Part II"
DS9 episode: "Life Support"
DS9 short story: "The Orb of Opportunity"
DS9 comic: "The Looking Glass War"
DS9 episode: "Heart of Stone"
DS9 episode: "Destiny"
DS9 episode: "Prophet Motive"
DS9 episode: "Visionary"
DS9 episode: "Improbable Cause"
DS9 episode: "The Die is Cast"
DS9 episode: "Explorers"
DS9 novel: The Laertian Gamble
DS9 episode: "Family Business"
DS9 episode: "Shakaar"
DS9 episode: "Facets"
DS9 novel: The Long Night
DS9 episode: "The Adversary"
DS9 novel: Station Rage
DS9 - Invasion! novel: Time's Enemy

2372

DS9 novel: Saratoga
DS9 novel: Wrath of the Prophets
DS9 episode & novelization: The Way of the Warrior
DS9 episode: "The Visitor"
DS9 episode: "Hippocratic Oath"
DS9 novel: The Tempest
DS9 episode: "Rejoined"
DS9 episode: "Starship Down"
DS9 episode: "Little Green Men"
DS9 episode: "The Sword of Kahless"
DS9 episode: "Our Man Bashir"
DS9 short story: "Broken Oaths"
DS9 episode: "Homefront"
DS9 episode: "Paradise Lost"
DS9 novel: Trapped in Time
DS9 episode: "Crossfire"
DS9 - Day of Honor novel: Armageddon Sky
DS9 episode: "Return to Grace"
DS9 novel: The Heart of the Warrior
DS9 episode: "Sons of Mogh"
DS9 episode: "Bar Association"
DS9 novel: The 34th Rule
DS9 episode: "Accession"
DS9 episode: "Rules of Engagement"
DS9 episode: "Hard Time"
DS9 episode: "Shattered Mirror"
DS9 novel: Trial by Error
DS9 episode: "The Muse"
DS9 episode: "For the Cause"
DS9 episode: "To the Death"
DS9 episode: "The Quickening"
DS9 episode: "Body Parts"
DS9 episode: "Broken Link"

2373

DS9 episode: "Apocalypse Rising"
DS9 episode: "The Ship"
DS9 episode: "Looking for par'Mach in All the Wrong Places"
DS9 episode: "Nor the Battle to the Strong"
DS9 episode: "The Assignment"
DS9 episode & novelization: Trials and Tribble-ations
DS9 novel: Vengeance
DS9 episode: "The Ascent"
DS9 episode: "Rapture"
DS9 episode: "The Darkness and the Light"
DS9 episode: "The Begotten"
DS9 novel: The Mist
DS9 episode: "For the Uniform"
DS9 episode: "In Purgatory's Shadow"
DS9 episode: "By Inferno's Light"
DS9 novel: The Conquered
DS9 novel: The Courageous
DS9 novel: The Liberated
DS9 episode: "Doctor Bashir, I Presume"
DS9 episode: "A Simple Investigation"
DS9 episode: "Business as Usual"
DS9 episode: "Ties of Blood and Water"
DS9 episode: "Ferengi Love Songs"
DS9 episode: "Soldiers of the Empire"
DS9 episode: "Children of Time"
DS9 episode: "Blaze of Glory"
DS9 episode: "Empok Nor"
DS9 episode: "In the Cards"
DS9 episode: "Call to Arms"
DS9 novel: Call to Arms...

2374

DS9 episode: "A Time to Stand"
DS9 episode: "Rocks and Shoals"
DS9 episode: "Sons and Daughters"
DS9 episode: "Behind the Lines"
DS9 episode: "Favor the Bold"
DS9 episode: "Sacrifice of Angels"
DS9 novel: ...Sacrifice of Angels
DS9 episode: "You Are Cordially Invited..."
DS9 episode: "Resurrection"
DS9 episode: "Statistical Probabilities"
DS9 episode: "The Magnificent Ferengi"
DS9 episode: "Waltz"
DS9 episode: "Who Mourns for Morn?"
DS9 episode: "One Little Ship"
DS9 episode: "Honor Among Thieves"
DS9 episode: "Change of Heart"
DS9 episode: "Wrongs Darker Than Death or Night"
DS9 episode: "Inquisition"
DS9 episode: "His Way"
DS9 episode: "Time's Orphan"
DS9 episode: "The Sound of Her Voice"
DS9 novel: The Fall of Terok Nor
DS9 novel: The War of the Prophets
DS9 novel: Inferno
DS9 episode: "Tears of the Prophets"

2375

TNG novel: The Battle of Betazed
DS9 episode: "Image in the Sand"
DS9 episode: "Shadows and Symbols"
DS9 episode: "Afterimage"
DS9 short story: "Chiaroscuro"
DS9 episode: "Take Me Out to the Holosuite"
DS9 episode: "Chrysalis"
DS9 episode: "Treachery, Faith, and the Great River"
DS9 episode: "Once More Unto the Breach"
DS9 episode: "The Siege of AR-558"
DS9 episode: "Covenant"
DS9 episode: "It's Only a Paper Moon"
DS9 episode: "Prodigal Daughter"
DS9 episode: "Field of Fire"
DS9 episode: "Chimera"
DS9 short story: "The Best Defense..."
DS9 episode: "Badda-Bing, Badda-Bang"
DS9 episode: "Inter Arma Enim Silent Leges"
DS9 episode: "Penumbra"
DS9 episode: "'Til Death Do Us Part"
DS9 episode: "Strange Bedfellows"
DS9 episode: "The Changing Face of Evil"
DS9 episode: "When It Rains..."
DS9 episode: "Tacking Into the Wind"
DS9 episode: "Extreme Measures"
DS9 episode: "The Dogs of War"
DS9 episode & novelization: What You Leave Behind

2376

DS9 - N-Vector comic: "N-Vector, Chapter 1"
DS9 - N-Vector comic: "N-Vector, Chapter 2"
DS9 - N-Vector comic: "N-Vector, Chapter 3"
DS9 - N-Vector comic: "N-Vector, Chapter 4"
SCE eBook: Aftermath
DS9 - Mission Gamma novel: Lesser Evil
DS9 novel: Unity
DS9 - Worlds of Star Trek: Deep Space Nine novel: Cardassia: The Lotus Flower

2378

DS9 novel: The Never-Ending Sacrifice

2383

ST - Typhon Pact novel: Raise the Dawn

ConnectionsEdit

USS Rutledge personnel
	Garcia • Kayden • Lind • Maxwell • Meier • O'Brien • Rendell • Tsao • Volodzhe

USS Portia personnel
	Bowman • Ryallen Colla • Data • Kilif • Johanna Kolbe • O'Brien • Picard • Shawn Rider • Vejar

USS Enterprise (NCC-1701-D) engineering personnel
	Aleakala • Ampalayon • Argyle • Barclay • Bartel • Blake • Bracken • Bruner • Butler • Carpelli • Clancy • Costa • Danilova • Della Guardia • Dern • Duffy • Eddies • El'sryk • Farrell • Friedel • Gomez • Hessan • Hubbell • Kelso • Kihn • Kopf • Kornblum • Kwan • La Forge • Lefler • Logan • Lynch • MacDougal • McRobb • Moezer • Myers • Nara • O'Brien • O'Connor • Oliver • Redbay • Robinson • Sherman • Shipley • Singh • Stone • Sutter • Taurik • T'Kaal • T'Lota • Varley • Vukcevok • Wallace • Zelenetsky
see also: medical personnel • pilots & flight control personnel • operations personnel • security & tactical personnel • sciences personnel • senior staff • unnamed

Starbase Deep Space 9 personnel and residents
Station personnel	K. Adabwe • Ahzed • Aleco V. • Alle T. • Amran • T. Ane • N. Aponte • Aylam E. • J.S. Bashir • Battes A. • Bilecki • J. Blackmer • P. Boudreaux • S. Bowers • Cardok • S. Carson • Cenn D. • J. Chao • Chavez • Costello • Cryan • Evik N. • E. Dax • J. Dax • Devro • S. Douglas • M. Eddington • Eddon • Etana K. • Evik N. • Gaysd T. • Girani S. • Goodman • Gordimer • Guerette • Hage • Hava • T. Jast • Jataq'qat • S. Jonsson • Kabo • Kahrimanis • Kelly • Kira N. • Kurn • C. Ling • P. Matthias • McCormick • McEwian • K. Merimark • Monyodin • Moru • I. Muckerheide • Munson • J. Si Naran • Nedani I. • Nguyen • Nog • M.E. O'Brien • Occino • Odo • D. Parks • Pertwee • Phongsit • G. Primmin • Redac • K. Richter • Ro L. • Rom • G. Roness • Sanger • Selzner • J. Senkowski • Setrin Y. • R. th'Shant • Shul T. • B.L. Sisko • Z. Slaine • N. Sthili • W. Stinson • M. Strang • S. Tarses • P. Tenmei • Terek • T. ch'Thane • Tolland • M. Tomson • T'Peyn • Trulli • E. Vaughn • zh'Vesk • Vu K. • Wasa G. • Wayeh S. • D. Wilkens • Worf • Woros K.
Station residents	Broik • Chram • Conpap • Elvim • Frool • Gann • E. Garak • Grehm • Grimp • Jas-qal • Kaga • Leeta • Modo • Morn • Nog • K. O'Brien • M. O'Brien • K. O'Brien • Quark • Rom • J.I. Sisko • Sorv • Taran'atar • Tora Z. • Treir • Vissh • K. Yates • Yelsi

External linkEdit

Miles O'Brien article at Memory Alpha, the wiki for canon Star Trek.

BIOGRAPHY
Miles O'Brien
Chief of Operations Miles Edward O'Brien (2375)
Full Name:	Miles Edward O'Brien
Species:	Human
Gender:	male
Born:	September 1, 2331
Affiliation:	Federation, Starfleet
Family
Sibling(s):	2 brothers, foster brother and sister
Marital Status:	married
Spouse(s):	Keiko O'Brien
Children:	Molly O'Brien, Kirayoshi O'Brien
Career
Previous Assignment:	Transporter Chief, USS Enterprise-D; Chief of Operations, Deep Space 9
Assignment:	Chief Engineer, Deep Space 9 (II)
Rank:	senior chief petty officer
Insignia:
Chief petty officer Miles O'Brien (2364)