Android 18 was created by Dr.Gero in the Cell Saga. Early in the Cell Saga 18 is absorbed by Cell but gets spit out later. At the end of the Cell Saga Krillin wishes 18 human because he loved her so she started to fall in lovce with Krillin
Android 17
Android 17 was created by Dr.Gero. Early in the Cell Saga 17 kills Dr.Gero and opens up a prototype android named Android 16. Later 17 gets absorbed by Cell.
Android 16
Andoid 16 is a prototype created by Dr.Gero.His main objective was to kill Goku but after seeing the destruction that Cell was causing he tryed to protect what he called a very beutiful
