A-1 (G1)

A1 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.}

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