Android 16
Android 16 is 100% mechanical, and his limitless power supply gives him the same fighting strength as first-form Cell. However, Android 16 loves nature and has a gentle disposition, making him reluctant to fight. Thus, Dr. Gero sealed him away
as a defective product.
After being revived by Androids 17 and 18, Android 16 accompanies them on their search for Goku. But even as the other Androids launch into battle, 16 can often be found sitting quietly on the sidelines, playing with the birds. In times of great need, however, such as when Cell threatened to absorb Androids 17 and 18, Android 16 will fight to protect the world that he loves.
Android 17
Created primarily to kill Goku, Androids 17 and 18 are also the keys necessary to making Cell complete.
He was formerly a delinquent boy, but he was taken against his will and reconstructed into an android along with 18. Naturally, he hates Dr. Gero, and after being activated in the lab, he wasted no time in taking his revenge.
With his limitless power supply, Android 17 is capable of a variety of energy attacks. He can also use his specialty, a powerful barrier, to deflect attacks from his opponents.
Android 18
Among the androids, she is the only girl-type, but in spite of her delicate appearance, her strength is enough to easily overwhelm the mighty Super Saiyan Vegeta. Fueled by her limitless power supply, she fights relentlessly, never tiring
or slowing down.
She was formerly a delinquent girl, taken against her will and reconstructed into one of Dr. Gero’s androids, but she refused to follow the doctor’s orders and was sealed away within his lab. Ultimately, in his effort to escape the pursuing Z-fighters, Dr. Gero was forced to reactivate Android 18.
After the Cell Games, she married Krillin, who had developed a crush on her after their very first meeting. Together, they had a daughter named Maron.
In Dragon Ball GT, to avenge the murder of her husband, she fought with Goku against Super Android 17.
Android 19
Three years after Trunks returned to the future, Android 19 appeared along with Android 20 (Dr. Gero) and fought Goku, who was weakened by a heart virus.
Of Dr. Gero’s android creations, it could be said that Android 19 is his first complete success. However, since he must rely on energy absorption to recharge his power, his fighting strength is limited compared to the other androids.
As it was Android 19 who oversaw Dr. Gero’s reconstruction into an android, his intelligence level is accordingly very high.
In the Trunks’ future world, the existence of Android 19 was never confirmed.
Cell (1st Form)
Cell was created in Dr. Gero’s underground laboratory, formed by fusing cell samples taken from the Z-fighters.
He can achieve his perfect form only by absorbing Androids 17 and 18. In order to absorb 17 and 18 and become complete, Cell killed Trunks in the future, stole his time machine, and traveled to the present.
In addition to his energy absorbing abilities, Cell also inherited a key Namekian trait: the ability to regenerate.
Cell (2nd Form)
After narrowly escaping Android 16’s attacks, Cell manages to absorb Android 17, and transforming into his second state.
In this form, Cell’s size and strength rise dramatically, and he is able to brush aside Android 16 with a minimum of effort.
Even with the most forgiving eyes, it would be difficult to see Cell as handsome or even remotely attractive in any way. Nonetheless, in his new form, he seems to feel that he is the most beautiful living specimen on the planet. This Narcissistic attitude may have been influenced by Vegeta’s genes…
Cell Perfect Form
His form becomes much more defined, and with his dramatic increase in power, he can indeed be called the Ultimate Android.
Wishing to test the limits of his new powers, he organized an event similar to the World Martial Arts Tournament, dubbed the “Cell Games”.
Despite his dignified manner, Cell is still a ruthless villain, capable of utterly destroying his opponent without a second thought. As soon as he finds himself at a disadvantage, however, Cell loses all composure and will resort to even the most desperate tactics to defeat his attacker.
After the battle with the Z-fighters, Cell was sent into the depths of Other World. There, he teamed up with Frieza, and it fell to Goku and Pikkon to stop their evil rampage.
Perfect Cell
Though it was thought that Cell was destroyed when he self-destructed on King Kai’s planet, the nucleus in his head survived the blast, and he was able to regenerate.
Thanks to his Saiyan genes, Cell’s recovery from this near-death state has the added effect of increasing his power on a massive scale. Furthermore, Cell has acquired the use of Instant Transmission. He uses this skill to return to Earth, where he will face Gohan in the final confrontation.
Cell Jr.
The Cell Juniors are the offspring of Perfect Cell. At the Cell Games, seven Cell Juniors appear.
In spite of their diminutive size and almost "cute" appearance, the Cell Juniors are no less lethal. Each one is born with the full powers of Perfect Cell himself.
In an attempt to draw out Gohan’s anger, the Cell Juniors toyed with the Z-fighters, tormenting them with their superior strength.
Gohan (Teen)
When he turned sixteen, Gohan took the opportunity to end his home schooling and enrolled in Hercule City’s Orange Star High School.
Gohan maintains the image of an average high school student for the benefit of Videl and his other classmates, but after school, he secretly fights evil-doers throughout the city as the defender of justice, Great Saiyaman.
Having neglected his training after the Cell Games, Gohan’s fighting skills have gotten rusty. But when he learns that Goku will be coming back from Other World to participate in the World Martial Arts Tournament, Gohan trains with his younger brother Goten to get back into shape.
After the wizard Babidi appeared, Gohan and the other Z-fighters fought bravely against Dabura and Majin Buu to protect the Earth.
Gohan has developed something of a sense of humor as he’s gotten older, as is evident in his choice of "Great Saiyaman" outfits…
When he appears in Dragon Ball GT, he is wearing glasses. Perhaps his eyes have gotten bad from too much studying.
Gohan (Super Saiyan Teen)
In this form, Gohan wages a difficult battle against Dabura and Majin Buu outside Babidi’s spaceship.
Though he has resumed his training in recent days, he still has not completely regained his old fighting skills.
Gohan (Super Saiyan 2 Teen)
While participating in the 25th World Martial Arts Tournament as the Great Saiyaman, he performed this transformation in response to Kibito’s taunts.
Afterwards, he never performed this transformation again. The reasons why are unknown.
