Dragonball Comedy
Biography
Android 17 is the male android that terrorised Trunks' future. Dr Gero created him to be one of the strongets fighters with the ability to defeat Goku. 17 believes he is the strongest warrior, until his battle with imperfect Cell shows that android 16 is clearly stronger than him. Android 17 is very cocky and such is the reason why the androids did not find Goku and kill him as soon as they could. Android 17 puts up a good fight against imperfect Cell but eventually gets absorbed. Android 17 later gets re-created as a Super android 17 but then gets defeated by the Z-Fighters.
The Alternative Theory
Android 17 was brought back to life by the dragonballs when Cell was defeated. he took the name Nick and dyed his hair blonde and became a member of the backstreet boys. Android 17 has been amongst the group the backstreet boys as a cover so that he can kill the z-fighters later on with his ultimate attack - The horrific singing where he kills them by serendaing them with cheesy boy band tunes.