From Dragon Ball Encyclopedia, the ''Dragon Ball'' wiki
Marron's Japanese name is a pun on the word Maron, or Chestnut in English.
Marron was born three years before the Majin Buu Saga and four years after the events of the Cell Games. As a baby and little girl, she resembled her father. She had his eyes and nose, or rather lack of nose. She does have a nose, though small, and as she grew older Marron began to look more like her mother. Unlike the rest of the other Z Warriors' children, Marron was the only one who was never trained by her mother or father, meaning she had never shown any special abilities or martial arts skills of her own, making her another background character. In Dragon Ball GT, it seems she can at least fly. When No. 18 suggested flying, Marron responded, "But I hate flying". This may be that one of her parents carries her though, rather then her having the ability herself. In the original version, she responded, "That will be scary". She cheered on her mom at the 25th Tenkaichi Tournament, and proved to be one of the few people who could make No. 18 smile. Their heartwarming relationship lasts through DBGT, when Marron is older. Marron may seem shallow to some, as she usually finds herself longing after the finer things in life like brand new designer clothes similar to how her mother, however, when a surprise attack finds her mother and father fighting for their lives, Marron realizes that nothing is as important as family.
The daughter of No. 18 and Kuririn is not identified by name until the very final manga installments after a lot of time has passed and she has gotten much older. In the anime, however, she is referred by name numerous times throughout the Buu Saga.
Dragon Ball Z
Great Saiyaman Saga
Marron's first appearance in the series was when Gohan arrived to tell Kuririn, No. 18, and Turtle Hermit about the upcoming 25th Tenkaichi Tournament.
World Tournament Saga
Marron cheered on both of her parents as they fought in their matches in the 25th Tenkaichi Tournament.
Majin Buu Saga
Marron went with the group to look for the Dragon Balls. Later, they had to escape to Kami's Lookout when they learned of a new villain named Super Boo, who a day later found everyone at the tower, and for a short time allowed them to live until he was tricked into the Hyperbolic Time Chamber while he fought Gotenks. Piccolo destroyed the door, but Super Boo found a way out and turned everyone including Marron into candy and ate them. Dende was the only one to escape, but only because of Mister Popo, who launched him out of the lookout as a last minute act to keep Dende alive so that the Dragon Balls could be used to revive the people Majin Boo killed.
Kid Buu Saga
Later during the battle, Marron, along with the rest of Earth is wished back to life. Each individual helped, thinking that they were giving their energy to their hero Mister Satan, this allowed Goku to collect enough energy for his Super Spirit Bomb, which ultimately killed Kid Buu. Marron is later seen at a party at Bulma's house. Ten years later, she observed the 28th Tenkaichi Tournament along with her parents at the end of DBZ.
Dragon Ball GT
Years later, Marron and the whole world became possessed by Baby, but she and her family did not help Baby fight against Son Goku. It is noticeable, however, that Marron now had the same personality traits as her mother, When they were cured of Baby and on their way to Planet Tuffle to escape from Earth, which was to explode in two weeks, Marron told her father to make sure they brought their shopping clothes. After Baby was killed and Earth was restored, she was later seen at a party at Bulma's house.
Super 17 Saga
Some months later, the family is stopped while shopping by Marron's uncle, No. 17, who is being controlled by Mu and Doctor Gero. No. 17 tries to get No. 18 to join him in his dark quest. As she began thinking about joining, Marron's father, Kuririn, tried to remind No. 18 of her family. No. 17 quickly dispensed of Kuririn and then tried to kill Marron, but her mother stopped him. No. 17 was ordered to kill No. 18, but something would not let him.
Shadow Dragon Saga
After being told to run away, Marron was seen again for the last time during the Shadow Dragon Saga in a house with her mother and Bulma, Chichi, and Videl, who were talking about Goku always running off.
Marron appeared in Dragon Ball: Yo! Son Goku and His Friends Return!!. She attended Mister Satan's party with her parents and the other Z Warriors.
Marron appeared in Dragon Ball Z: Buu's Fury.
- Japanese dub: Tomiko Suzuki
- FUNimation dub: Laura Bailey (Dragon Ball Z), Meredith McCoy (Bio-Broly and Dragon Ball GT)
- Blue Water dub: Jennifer Bain (Dragon Ball GT)
- Upon her introduction during the Great Saiyaman Saga, Marron is three years old, which makes her thirteen at the end of Dragon Ball Z and eighteen at the beginning of Dragon Ball GT. In DBGT, she still has the appearance of a teenager, and even acts like one despite being a young adult. It should be noted that since her mother does not age and was converted into a cyborg in her late teens to early twenties, No. 18 and Marron should look about the same age. This is obviously not the case, but this could be just another of DBGT's plot holes.
- Her name is very similar to Maron, Kuririn's first girlfriend, and is pronounced the same way.
- Throughout Dragon Ball Z, she lacks a nose like her father, Kuririn, yet later on at the end of Dragon Ball Z she has one. It is a possibility that she does have a nose in Dragon Ball Z, albeit a tiny one.