Androids 17 and 18 are cyborgs, not fully mechanical androids like 16. Android 16 is fully mechanical, created by Dr Gero. Android 16's true identity is Dr. Gero's late son, Gevo, modeled to be ...

Vomi, Dr. Gero's deceased wife. Gevo, Dr. Gero's son who he modelled #16 after. ... However, the mother and son died at some point which pushed Gero to recreate his family as androids.