Keiko O'Brien is a fictional character portrayed by Rosalind Chao in the TV series Star Trek: Deep Space Nine.
In the first episode they appeared in, titled A Man Alone (season 1), they were 35 years old.
They appear in 19 episodes out of a total of 173 aired and have accumulated 14 positive votes.
Episodes19
A Man Alone
episode S1.E4 january 1993Ibudan, a criminal Odo has dealt with before, returns to DS9 only to be murdered shortly after - leaving Odo to be the prime suspect. Jake and Nog's trouble-making prompt Keiko to do something helpful for the station's children.
If Wishes Were Horses
episode S1.E16 may 1993While Dax investigates an unusual energy reading near DS9 to see if it's dangerous for the station, people's imaginations suddenly come alive, causing chaos.
In the Hands of the Prophets
episode S1.E20 june 1993Vedek Winn, a candidate in the race for the open Kai position, stirs up trouble on DS9 when she attempts to boycott Keiko's school for not teaching Bajoran religious beliefs.
The Siege
episode S2.E3 october 1993As a Circle-led Bajoran military attempts to occupy the station, a skeleton crew, led by Sisko fight to reveal the Circle's secret before they're forced to evacuate themselves. Meanwhile, Kira and Dax lead a mission to reveal the truth about the Circle, on Bajor.
Cardassians
episode S2.E5 october 1993Political tensions rise on DS9 when Bajorans board the station with a supposedly orphaned Cardassian whom they have adopted.
Rivals
episode S2.E11 january 1994Quark meets his match when a new rival opens a casino opposite his bar on the Promenade. Meanwhile, the station is suffering issues of high improbability.
Armageddon Game
episode S2.E13 january 1994Chief O'Brien, who still doesn't particularly like Doctor Bashir, must rely on him when the two are stranded on a planet and O'Brien is infected with a deadly, fast moving disease.
Whispers
episode S2.E14 february 1994Chief O'Brien's world is turned upside down when for no reason whatsoever he is being ignored by his family and friends and is being closed out of every essential job on the station.
Tribunal
episode S2.E25 june 1994Chief O'Brien goes through the horrific Cardassian judicial system when he is charged for an unknown crime.
The House of Quark
episode S3.E3 october 1994Quark is forced to marry a Klingon widow after he takes credit for the accidental death of her husband, the head of a powerful Klingon House.
Fascination
episode S3.E10 november 1994When Lwaxana Troi visits the station for the Bajoran Gratitude Festival, the crew is stricken with intense romantic attractions to one another.
Accession
episode S4.E16 february 1996A man claiming to be the emissary comes through the wormhole. Sisko is happy to give up his position. Meanwhile Keiko returns and O'Brien stops spending time with Bashir.
Hard Time
episode S4.E18 april 1996O'Brien tries to re-integrate to life on the station after serving 20 years in a virtual prison.
Body Parts
episode S4.E24 june 1996Quarks hears on Ferenginar he is going to die. Rom convinces him to sell his remains. After an accident, Bashir has to move Keiko's baby to Kira's womb.
Looking for Par'Mach in All the Wrong Places
episode S5.E3 october 1996While Worf helps Quark to pursue his former wife Grilka, O'Brien and Kira grow uncomfortably close to each other.
The Assignment
episode S5.E5 october 1996An alien entity has possessed Keiko's body and is holding it hostage until O'Brien completes an assignment for it.
The Begotten
episode S5.E12 january 1997The discovery of an infant Changeling gives Odo a chance to correct what he sees as the "mistakes" in his upbringing. But as Starfleet's pressure for results grows, he has to turn to his "father," Dr. Mora.
Time's Orphan
episode S6.E24 may 1998The Chief's daughter gets caught in a time displacement and when they get her back, she is considerably older.
What You Leave Behind
episode S7.E25 june 1999As the Dominion War comes to an end, Dukat goes to the Pah Wraiths to awaken them. Meanwhile the Dominion turn on the rebelling Cardassians, destroying them city by city. Will the Alliance prevail over the Dominion? Will Garak and the Rebellion stop them before the destruction of Cardassia? Will Sisko stop the Pah Wraiths from rising?
- A Man Alone
- If Wishes Were Horses
- In the Hands of the Prophets
- The Siege
- Cardassians
- Rivals
- Armageddon Game
- Whispers
- Tribunal
- The House of Quark
- Fascination
- Accession
- Hard Time
- Body Parts
- Looking for Par'Mach in All the Wrong Places
- The Assignment
- The Begotten
- Time's Orphan
- What You Leave Behind
Best moments3
- The Chief's daughter gets caught in a time displacement and when they get her back, she is considerably older.
- An alien entity has possessed Keiko's body and is holding it hostage until O'Brien completes an assignment for it.
- Ibudan, a criminal Odo has dealt with before, returns to DS9 only to be murdered shortly after - leaving Odo to be the prime suspect. Jake and Nog's trouble-making prompt Keiko to do something helpful for the station's children.
- Time's Orphan
- The Assignment
- A Man Alone