Sep. 26, 1987
60 min.
Syndicated TV Network

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Star Trek: The Next Generation

Settled in the 24th century and 78 years after the adventures of the original crew of the starship Enterprise, under the command of Captain Jean-Luc Picard the all new Enterprise NCC 1701-D travels out to distant planets to seek out new life and to boldly go where no one has gone before.

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Keiko O'Brien Star Trek: The Next Generation
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Keiko O'Brien

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  Played by:
Rosalind ChaoRosalind Chao
Rosalind Chao (born 23 September 1957; age 52) is an actress best known for her portrayal of Keiko O'Brien ...

Character Bio

Keiko O'Brien photo
Keiko O'Brien (née Ishikawa) was a 24th century civilian botanist aboard the USS Enterprise-D and later Bajor and as the primary school teacher aboard the starbase Deep Space 9.

Keiko Ishikawa, daughter of Hiro Ishikawa, was a native of Japan, Earth. Her mother, born in 2269, was a resident of the city Kumamoto well into the 2360s.

(TNG: "Disaster")

Keiko had a strong bond with her family and past; as a child she used to help her grandmother, whom she called Obachan (Japanese for grandmother), with her Japanese brush writing or calligraphy. Young Keiko would fill an old chipped cup with water and bring it to the table for her grandmother to use for cleaning the brushes. Keiko would sit beside her and watch the most beautiful characters come from her brush – the whole time, she would hum to herself.

(TNG: "Violations")

Keiko's and Miles' wedding in 2367

Keiko was introduced to Miles O'Brien by their mutual friend, Data.

(TNG: "Data's Day")

While on Earth together, Miles and Keiko visited McKinley Park, where Miles gave Keiko a gold bracelet.

(TNG: "Power Play")

The two eventually wed aboard the Enterprise-D in a wedding ceremony that combined Irish and Japanese traditions. Data served as the "father of the bride."

(TNG: "Data's Day")

One of Keiko's favorite foods was plankton loaf with kelp buds and sea berries. Following her marriage to Miles, she prepared a plankton loaf for lunch one day, much to the dismay of Miles.

(TNG: "The Wounded")

Together Miles and Keiko O'Brien had their first child, Molly, who was born in early 2368. Keiko gave birth to the child in the Enterprise's Ten Forward lounge during a ship-wide systems failure. Lieutenant Worf coached Keiko during her labor and later delivered the baby.

(TNG: "Disaster", "The Game")

Keiko was part of a woodwind quintet on the Enterprise-D in which she played the clarinet.

(TNG: "In Theory")

Keiko, an apparent follower of fashion, was replicating longer dresses in mid-2370 to keep up with the style.

(DS9: "Paradise")


Keiko was assigned to the USS Enterprise-D as a botanist, working primarily in the arboretum.

(TNG: "Data's Day")

She was also the head of the biology lab, when the Enterprise got caught in the Tyken's Rift. In mid-2368, Keiko was assisted by young Clara Sutter in planting several nasturtiums.

(TNG: "Night Terrors" "Imaginary Friend")

For years Keiko saw an old cup in her memory, but could never recall what it was or why it was important. Following an encounter with a Ullian named Tarmin, a telepathic historian, she was able to recall the significance of the cup – she thought that it was a wonderful experience. Following a series of telepathically-induced comas, Doctors Crusher and Martin did a neurological work-up on Keiko, since she was the only person aboard the Enterprise to experience the memory probe, in order to see if there were any residual effects from her experience.

(TNG: "Violations")

Keiko and Molly were among those taken hostage when three aliens possessed Deanna Troi, Data and O'Brien.

(TNG: "Power Play")

In 2369, Keiko, Guinan, Ro Laren and Jean-Luc Picard visited the planet Marlonia where Keiko found a specimen of Draebidium calimus, which she brought back to the Enterprise on her return trip. Moments before docking on the Enterprise, their shuttlecraft, Fermi, became enveloped in an energy field, and their subsequent emergency transport caused the group to be transformed into children. She was eventually returned to her normal state.

(TNG: "Rascals")

Later that year, Miles was transferred to the new Federation outpost Deep Space 9. Keiko and Molly moved to the station as well, much to their dismay.

(DS9: "Emissary")

See DS9 Keiko O'brien for the continuation of her biography

Episode Screenshots

06x20 - The Chase
Season 6, Episode 20
02x10 - The Dauphin
Season 2, Episode 10
05x15 - Power Play
Season 5, Episode 15
07x17 - Masks
Season 7, Episode 17
[More Episodes]

Keiko O'Brien Photos

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