A-2

A2 is a Transformer from the Generation 1 continuity family.

You can't see me!

_{This character has no official visual representation in any Transformers product or media... yet, at least.}

A2 was the second Cybertronian created by the Quintessons. However, he was an failure, as was the first, A1. They were succeeded by the first successful Transformer, A3.