|First||Full Name: Android 18|
|Second||Origin: Dragon Ball Z|
|Third||Personality: Good, arrogant, aggressive, protective, friendly, wise|
|Fifth||Voice: Miki Itou|
Android 18 is originally a Human named Lazuli, and the eldest out of her and her twin brother Lapis (the eventual Android 17). The twins were notorious delinquents, who Dr. Gero would meet by chance while looking for fresh material for his experiments. He then kidnapped them and restructured them into Android 18 and Android 17. She is the second artificial human, between her and her twin brother, designed by Dr. Gero to be created by fitting a human being with cybernetics. Gero's experiments on her, resulting in her transformation into a cyborg, do not impede her ability to reproduce, as evidenced by her giving birth to a healthy daughter, Marron. Since they are human-based, she and her brother can become stronger if they train. Though they do not need to eat, they do need to hydrate. Also, their cells deteriorate slowly, so they age slowly too.
When Dr. Gero arrives at his laboratory (after he and Android 19 fail to combat the Z Fighters, with 19 getting killed by Vegeta), he activates Android 17 and Android 18. There is another android yet to be activated, Android 16. Android 17 and Android 18 want to activate him but Dr. Gero refuses. Android 17punches Gero's chest, decapitates him, and squashes his head. They eventually activate Android 16 and pursue their quest to find Goku. They are confronted by the Z Fighters, and Android 18 fights Super Saiyan Vegeta. Through the battle, Vegeta continues to lose stamina, while Android 18 continues to fight, and she eventually gains the upper hand and breaks his arm. The others try to help but are easily defeated, with the assistance of Android 17, As persistent as Vegeta is, he is no match for Android 18. Android 18 gives Vegeta a rough beating and ends the fight by breaking his other arm. The androids approach Krillin, but have no interest in killing him. When the androids tell Krillin that they are searching for Goku, Krillin tries to persuade them to drop their search for him, but they do not listen. Android 18 goes over to kiss the terrified Krillin on the cheek before continuing their quest to find Goku. This is when Krillin begins to fall in love with Android 18.
A few days later, the androids arrive at Kame House to find Goku. Piccolodecides to take his place and leads the androids to one of the Tropical Islandswest of Master Roshi's island, thinking he can now defeat the Androids thanks to his fusion with Kami.
When Imperfect Cell arrives and interrupts the fight between Piccolo and Android 17, he absorbs Android 17 and becomes Semi-Perfect Cell despite Piccolo, and later Android 16, fighting Cell. Cell attempts to absorb Android 18 as well, but he is stopped by the arrival of Tien Shinhan, who holds him off with a series of Tri-Beams so that Android 18 and the damaged Android 16 can escape. Android 18 and an injured Android 16 hide on an island where they later watch the battle between Cell and Vegeta. Krillin finds their location on the island but refuses to engage her shut-off device, which would shut her down, in spite of the serious threat that could result in Cell's perfection posed by 18 being alive. Because of this, Semi-Perfect Cell eventually absorbs her (with help from Vegeta) and reaches his ultimate power, easily defeating Vegeta and Future Trunks. Perfect Cell becomes overpowered by Gohan (as aSuper Saiyan 2) during the Cell Games, and regurgitates Android 18. Krillin immediately comes to her side and tends to her for the duration of the battle. After Super Perfect Cell is defeated at Gohan's hand, Android 18 is taken to Kami's Lookout and she is healedby Dende. While there, she figures out that Krillin has a crush on her when Gohan yells it to everyone. This leaves Android 18 surprised and slightly flattered. She leaves but, when seeing Shenron, she hides in the lookout to see what is going on. Krillin uses the Dragon Balls to make a wish to Shenron that Android 17 and Android 18 be restored their complete humanity, but when Shenron is unable to grant his request, Krillin takes the opportunity to wish for the self-destruct devices within Android 18 and Android 17 be removed. Revealing her presence in the process, she corrects Krillin about the relationship between herself and Android 17 as being familial instead of as lovers. Nonetheless feeling flattered, Android 18 then simply says "I'll see you later!" and leaves the lookout.
Android 18, who used to be a delinquent, found Krillin's seriousness and straightforwardness refreshing, and somehow or other she ended up falling for him. Seven years after the Cell Games, Android 18 and Krillin are married and have a three-year-old daughter named Marron. Android 18's family is an exceptionally ordinary household, but Android 18 is scary when she gets angry, so Krillin goes out of his way a little bit for her. When Gohan tells Android 18 and Krillin that Goku will return to Earth to enter the 25th World Martial Arts Tournament, Android 18 convinces Krillin to enter to win the prize money. When Goku returns and is reunited with his friends and family, Android 18 remains cold and distant towards him, as she is created specifically to kill him, and displays annoyance when Goku expresses surprise to see her with Krillin and the others, and later sarcastically says "Spare me" when Goku is even more shocked that Krillin not only married her, but had a child with her (mostly because he thinks Android 18 cannot reproduce due to being an android, not realizing that she is actually a cyborg rather than a true android). Later, she is matched against Mr. Satan in the World Martial Arts Tournament after defeating Mighty Mask(actually Goten and Trunks in disguise).
|"Now that you know you can't win I don't mind let you have the victory."
— Android 18 towards Mr. Satan
Not interested in the fame that comes with becoming the World Martial Arts Champion (and in addition, prevailing over Satan, who is generally believed by people of Satan City to be the strongest man in the world), Android 18 allows Mr. Satan to defeat her and retain his somewhat misappropriated title, provided that he reimburses her an amount of money (twice the prize money that he would be receiving as tournament champion).
After the World Tournament, she goes with the others to look for the Dragon Balls and later she takes refuge from Majin Buu at Kami's Lookout. While on the lookout, she watches the fusion of Goten and Trunks. A day later, Super Buu finds the tower and allows them to live for a short time. While on the lookout, Super Buu uses his Human Extinction Attack to kill everyone on Earth.
When Super Buu escapes the Hyperbolic Time Chamber, Android 18 is killed along with her family by Super Buu, who turns them into chocolate and eats them. Her life is restored through a wish from Porunga, and she later supplies Goku with her energy to fuel a Spirit Bomb, in an effort to defeat Kid Buu. Though peace has returned, Android 18 still maintains a cool and distant attitude toward Goku (as she was originally "created" to kill him) but she still can not resist smiling when Goku returns and has a tearful reunion with his family, and smiles when Goku and Chi-Chi embrace, showing a softer side to her personality. She is later seen at a party at Bulma's house, where she playfully pushes Gohan forward to make him dance with Videl.
- Dragon Ball Z: The History of Trunks (alternate timeline counterpart)
- Dragon Ball Z: Super Android 13!
- Dragon Ball Z: Bio-Broly
- Dragon Ball: Yo! Son Goku and His Friends Return!!
- Dragon Ball Z: Battle of Gods
- Dragon Ball Z: Super Android 13!
Android 18 and her brother Android 17 appear in the films opening narration, depicting their rebellion and murder of their creator Dr. Gero.
- Dragon Ball Z: Bio-Broly
Android 18 has a major role in this film. As Mr. Satan did not pay Android 18 her cut of the prize money yet, she, alongside Krillin, Goten and Trunks go to his personal mansion, with her personally entering and destroying much of his property to get him to fork over the promised cash. However, right as she is about to leave the house, she is interrupted by the arrival of Men-Men, the cousin of an old classmate of Mr. Satan, Lord Jaguar, who proceeds to blackmail Mr. Satan into fighting his Bio-Warriors at Mei Queen Castle. Wanting to make sure Mr. Satan does not forget about their deal, Android 18 tells Krillin to watch over Marron and ends up going with Mr. Satan. Goten and Trunks stow away aboard Men-Men's vehicle. Upon arrival, she is leered at by Jaguar when meeting his rival for the first time in many years (with Mr. Satan claiming that Android 18 is one of his students), with her proceeding to nonchalantly knock Jaguar into a wall. She later uses the opportunity whenever Mr. Satan tries to request her help to increase the amount of Zeni paid. However, she is eventually beaten by Bio-Broly, a clone of the then-recently deceasedLegendary Super Saiyan Broly. She later proceeds to aid in the evacuation of the personnel, alongside Trunks, Goten, and Krillin (who arrived due to not wanting to missing out on the action), as well as pushing Krillin down when he briefly interacted with the female scientists. She then stays with the surviving personnel while Krillin, Goten, and Trunks use their Kamehamehas to cause a freak wave to consume Jaguar's island and halt the spread of the Culture Fluid.
10 years later, she attends the 28th World Martial Arts Tournament with her family and the other Z Fighters at the end of the Dragon Ball Z series.
Years later, in her first appearance in Dragon Ball GT, Android 18 becomes a servant ofBaby. During the battle between Goku (as aSuper Saiyan 4) and Baby Vegeta, she, along with Krillin and Marron are caught in the destruction of Satan City by Baby's Super Galick Gun. However, all of them appear to have avoided the blast. She is later cured with the Sacred Water. She must later go to the Tuffle planet before the Earth explodes because of the wish by Baby to restore his home planet. Afterwards, she attends a party at Bulma's house.
|"Destroying innocent lives is what makes you the coward, 17."
— Android 18 towards her brother
Some months later, Android 18 later appears in the city with her family, until Android 17 attacks. 17 attempts to control her. However, Krillin intervenes, pointing out that Android 18 is now married and has a child. He also reminds Android 17 that he killed Dr. Gero himself, but 17's Machine Mutant counterpart, Hell Fighter 17, contacts him and regains control, causing him to kill Krillin. Krillin's death brings Android 18 back to reality, causing her to go in a rage and attack her own brother. Seeing what he has done, Android 17 then targets Marron so he can gain full control of Android 18, but Android 18 defends her from Android 17's energy wave, leaving her in a critical condition. Android 17 flies off to merge with Hell Fighter 17, and Android 18 crawls over to Krillin, taking his hand as she appears to die with him. Later, Android 18 reappears and in an attempt to avenge her husband's death, she joins Goku in the struggle against Super 17, leading to the super-android's self-emancipation by force from Dr. Myuu and eventually his death. It is at this point where Goku and Android 18 finally put their differences aside, and Android 18 accepts Goku as a true friend and ally.
Soon after the threat of the Shadow Dragons, Android 18 is seen at Capsule Corporation accompanied by Bulma, Chi-Chi, Videl, and Marron (her daughter) . There is some debate as to whether or not Android 18 and her brother are still alive 100 years after the events of Dragon Ball GT (particularly during the time of the 64th World Martial Arts Tournament and the events of the specialDragon Ball GT: A Hero's Legacy). While Dr. Gero states that the process of reconfiguring the siblings into cyborgs has made the two immortal, this is contradicted by the special A Hero's Legacy, where it is narrated that Pan is the only character remaining from the generation of the original Z Fighters. However, this could be because the Androids may not be considered part of the Z Fighters, as they only aligned to them.