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- For other uses, see Molly.
- See O'Brien for other articles with titles that contain, either by relationship or by coincidence, this character's surname.
Early life aboard the Enterprise-DEdit
She was born aboard the USS Enterprise-D in 2368 (around stardate 45156.1). Because the Enterprise was struck by quantum filaments that rendered various parts of the ship inaccessible to the rest of the crew, Keiko was trapped in the ship's Ten Forward lounge when she went into labor, and Molly was delivered by Lieutenant Worf. The O'Briens seemed to have been preparing for the birth of a boy, which made the female child a surprise. (TNG episode: "Disaster")
Later that year, Molly, together with her mother Keiko, was one of the crewmembers taken hostage by Ux-Mal criminals that had taken over the bodies of Data, Deanna Troi and her father, Miles O'Brien. Molly didn't stop crying and so caused some tension amongst the kidnappers. When the kidnappers left Ten Forward with some of the hostages, including Keiko, she asked the kidnappers for permission to leave Molly in the care of Diana Giddings. The family was later re-united in sickbay after Miles O'Brien had been freed from the influence of the aliens. (TNG episode: "Power Play")
In 2369, Keiko, visited the planet Marlonia where she 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 her body to be changed into a twelve year old. While Keiko's body was still older and larger than Molly, the difference was noticeably less, and Molly had trouble adjusting to this change, refusing to acknowledge Keiko as her mother. This noticeably upset Keiko and probably motivated her decision to assume her previous age, so that she would be accepted as a mother to her again. She was eventually returned to her normal state and was accepted as a mother by Molly again. (TNG episode: "Rascals")
On Deep Space 9Edit
Miles often told Molly bedtime stories. One of her favorites was "Rumpelstiltskin". However, later Rumpelstiltskin appeared in Molly's room and wreaked havoc on the station until the crew realized that he was a figment of their imagination. Before being defeated, Rumpelstiltskin offered to save the station in exchange for Molly. Miles was reluctant, but then the crew made a breakthrough and the O'Briens were allowed to keep their daughter. (DS9 episode: "If Wishes Were Horses")
Later that year, a baby Horta interrupted one of Keiko's lessons, while the rest of the students fled. Molly boldly declared "H is for Horta" before feeding the infant Horta her computer, as her mother followed her example, feeding the Horta more computers to keep it occupied Molly continued to analyse the situation, declaring "B is for Breakfast". (DS9 novel: Devil in the Sky)
She attended a day care on the station. She went through the phase of not wanting to be near her father, and when Miles offered to drop her off at day care, Keiko said she was taking her to school with her so that Molly could experience a Vulcan program that taught basic problem-solving skills. (DS9 episode: "Whispers")
Molly went with her mother on a botany expedition that lasted several months. When she returned, Miles was eager to spend the two days he had with her, but Molly wasn't feeling well. Later, however, she said she felt "lots better." The day after, Molly again left with Keiko for half a year more of the trip. Miles told her to take care of her mother for him. (DS9 episode: "Fascination")
Some six months later Molly, along with her mother, returned to Deep Space 9 from Bajor where she'd acquired a Bajoran doll named Lupi. Molly was the one to tell her father that Keiko was pregnant again, this time with her little brother. Miles was looking forward to spending a lot of time with Molly, and tried to teach her how to play darts. While Molly had a good aim, she grew bored with it and opted to color instead. When she drew a pony, Miles asked if it had a name, but Molly said that she "didn't know." (DS9 episode: "Accession")
Molly loved to color, and often did so after dinner. She was, however, in charge of putting her plate in the replicator. She attempted to show Miles one of her drawings, but he got irritated and lashed out at her. She began to cry, and when Miles tried to apologize, Molly was too upset to listen. However, she later forgave her father, and welcomed him home with a hug and a "Daddy's home!" (DS9 episode: "Hard Time")
In 2373, Keiko went on a five-day trip to Bajor. During this time, Miles was to care for her plants. However, in a combined effort with Julian, he managed to kill a species of plant. Molly left her room and saw the dead plants, and warned her father that he would be in trouble. When Miles suggested that Molly be the one to break the news to her mother, she responded, "Not me!" After Keiko returned, she threw Miles a surprise birthday party. Molly was present, and wore her new purple shoes just for her father. She also contacted her father at work to say hello. (DS9 episode: "The Assignment")
Molly's younger brother, Kirayoshi, was born in 2373, and was carried by Kira Nerys after a shuttle accident. During this time, Molly sometimes referred to Kira as her aunt. (DS9 episodes: "Body Parts", "The Begotten")
In 2374, while on a picnic with her parents on a nearby planet, the eight year old Molly fell through an energy vortex. When the crew arrived to help, it was determined that she fell through a time portal 300 years into the past when the planet was uninhabited. When Chief O'Brien reactivated the portal, the calculations were off by ten years, and an eighteen-year-old version of Molly appeared.
Without Human contact for ten years, she was like a wild animal and had a difficult time adjusting to life on Deep Space 9. Molly was homesick for her planet, and the O'Briens tried to recreate the environment that Molly was used to in a converted cargo bay. At first she made progress, but later became unmanageable. Starfleet wanted to commit her to a special facility. The O'Briens decided to return her to the planet and send her back through the portal knowing that they would never see her again. However, when Molly went back, a flaw in the O'Briens' programming of the portal meant that she arrived in the past at the same time as her eight-year-old self, subsequently sending her past self back through the portal to be reunited with her family. (DS9 episode: "Time's Orphan")
Both Molly and Kirayoshi moved back to Earth with their parents in late 2375, when Miles accepted a position as Professor of Engineering at Starfleet Academy. Initially, Molly wondered if they were not going back to Earth, because Miles had not informed Julian Bashir, his best friend. However, she was told that they were indeed going. Molly also showed interest in her father's model of the Alamo. When Miles warned her not to touch it, she retorted that she let him play with her toys. (DS9 episode: "What You Leave Behind")
After nearly a year on Earth, in late-2376, the O'Briens relocated to Andak on Cardassia after Keiko took a position as leader of the Interstellar Agricultural Aid Commission Andak Project. (DS9 novel: Unity)
In 2378, Molly struggled with her mathematics homework, finding quadratic equations particularly challenging, and describing them as "agony", much to her father's disappointment. She was saved from continuing with one such agony by the arrival of Rugal Pa'Dar and Hulya Kiliç. Miles resignedly let her show Hulya around the project base rather than finish her homework. (DS9 novel: The Never-Ending Sacrifice)
Bajor and Deep Space 9 (II)Edit
Afer nearly seven years on Cardassia, the O'Briens returned to the B'hava'el system and Bajor in 2383. Once the new starbase Deep Space 9 was complete in 2385, Molly, Keiko and Kirayoshi moved in with Miles aboard the station. (The Fall novel: Revelation and Dust)
By January 2386, eighteen-year old Molly was intending to be an artist and study art at university. She painted on very large canvases and favoured flowers as a subject. She also had somewhat of a love-hate relationship with her mother at this point, with both resorting to yelling and throwing things during their hostilities. (DS9 novel: Force and Motion)
In an alternate timeline in which the Borg Incursion of 2366-2367 was successful, Molly was was born earlier than 2368. When the Borg destroyed the saucer section of the Enterprise, Molly was one of the civilians killed during the attack. (TNG comic: "The Belly of the Beast")
- TNG comic: "Bone of Contention"
- TNG episode: "Rascals"
- DS9 novelization: Emissary
- DS9 episode: "A Man Alone"
- DS9 novel: The Siege
- DS9 novel: The Star Ghost
- DS9 episode: "If Wishes Were Horses"
- DS9 episode: "The Siege"
- DS9 novel: Fallen Heroes
- ST comic: "Prophets and Losses"
- ST comic: "The Enemy Unseen"
- DS9 novel: Devil in the Sky
- DS9 novel: Field Trip
- DS9 episode: "Whispers"
- DS9 comic: "Baby on Board"
- DS9 novel: Wrath of the Prophets
- DS9 comic: "Judgment Day"
- DS9 novel: The Tempest
- DS9 episode: "Accession"
- DS9 episode: "Hard Time"
- DS9 episode: "Body Parts"
- DS9 short story: "Life's Lessons"
- DS9 episode: "The Assignment"
- DS9 - Telepathy War comic: "Command Decisions"
- 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