Well, we learned sometime in the Cell saga that 18 started out as a human and was modified to be a cyborg android. This also means that Marron might be the first human-cyborg hybrid offspring in existence, though not the only one.
Background. Android 18 was created by the mad scientist Dr. Gero of the Red Ribbon army. Though called an Android in the English dub, she is in-fact a cyborg, formally human enhanced with nano-technology to be made into a man-made superhuman. Her original human name was Lazuli.
However, Dragon Ball Z has established that 17 and 18 are not robots, confirming that they were born as ordinary humans named Lapis and Lazuli. It was only after they were kidnapped and experimented on by Dr. Gero that they became known as Androids 17 and 18.
Despite being labeled an "Android", she is still Human and completely organic, so instead she was genetically altered given superhuman abilities in the process, and can still grow in skills and power through training like the superhumans.
Doctor Gero created Androids 17 and 18 from two twins he kidnapped as children. Here's why the two siblings were targeted by the mad scientist. Among the most powerful fighters in the entire Dragon Ball franchise are the formidable twins Androids 17 and 18.
Android 17 is a half-human, half-machine created by the evil scientist Dr. Gero. Android 18 is actually his twin sister, and when they were still regular humans their names were Lapis and Lazuli. Both are fitted with perpetual energy reactors, meaning they have effectively infinite stamina.
Android 18 (人造人間１８号, Jinzōningen Jū Hachi-Gō), originally named Lazuli (ラズリ, Razuri) when she was an ordinary human, is the older twin sister of Android 17 and Dr. Gero's eighteenth android creation, designed to serve Gero's vendetta against Goku.
Unlike her mother and father, Marron is not a fighter or martial artist and is apparently a normal human girl. However, in Dragon Ball Super, 18 reassures Krillin that Marron is tougher than she looks, indicating she is strong enough to stay on the island and survive there with Goten and Trunks.
In the Cell Android 18 isn't exactly an android, she's specifically a cyborg. She was human once but Dr.Gero remodeled her and added cybernetics, thus retaining certain human functionality, such as being able to get pregnant.
Android 21 is initially a Human-type Earthling named Vomi who was converted into an Android by Dr. Gero. As a human, she was the former lover of Gero and she had a son who became the model for the design of Android 16.
An android is a humanoid robot or other artificial being often made from a flesh-like material. Historically, androids were completely within the domain of science fiction and frequently seen in film and television, but advances in robot technology now allow the design of functional and realistic humanoid robots.
Android 17 was originally a human named Lapis, and the younger of he and his twin sister Lazuli. 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 17 and Android 18.
Android 16 then reveals that he was never a human, making him fundamentally different from Android 17 and Android 18.
Shenron could not make them fully human. He could only remove their self destruct devices. 17 and 18 were born human just enhanced by Gero. They are cyborgs unlike 16 and 19.
4/20 Has A Disc Filled With Destruction
He can transform into several different Super Saiyan levels. Krillin doesn't have a Super Saiyan mode because he's only human.
Type of Villain
Android 18 is an antagonist-turned-supporting protagonist in Dragon Ball, serving as one of the two secondary antagonists (alongside Android 17) in the Android Saga and an anti-hero in the Imperfect Cell Saga of Dragon Ball Z. She is an android created by Dr. Gero.
Krillin is commonly regarded as the strongest human Z-Warrior, but Dragon Ball Super's story makes the character still holding this title unlikely. Dragon Ball Super makes it unlikely that Krillin is still the anime's strongest human.
In the 7 years between the Cell saga and the Buu saga, Android 18 and Krillin got married and had a kid. Until Dragon Ball Super, they apparently lived with Master Roshi in the Kame house.
Toriyama once stated, seemingly humorously, that Krillin's lack of a nose is because he has a "physical idiosyncrasy" that allows him to breathe through the pores of his skin.
Chiaotzu is a human who possesses a few different traits than most characters in the series, such as plain white skin and red cheeks. He is based on Chinese vampires (the Jiang Shi), as the similarities are displayed in both his appearance and also when Chiaotzu performs some of his attacks.
As far as technicalities are concerned, yes. She's half Saiyan, and we've seen all the other 1/2 Saiyans (Gohan, Goten, Trunks) go Super Saiyan, so it follows she can too.
Kashi (菓子 Ka-shi), also known as Android 7 ('Jinzōningen Nana "Artifical human No. 7)' for a period of time, is the unseen wife of Android 17 and was one of the first androids to be created by Dr. Flappe in the Red Ribbon Army.
Android 16, on the other hand, was completely robotic, and in the Dragon Ball manga, Shenron cannot revive or reconstruct purely artificial beings. This is why Android 16 is never seen or heard from again.
4/10 Chi-Chi
She's of the same age as Goku, being born on May 12, Age 737, and 47 years old by the end of DBZ.