Rexian

You can't see me!

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

Rexian is a Quintesson from the Universe portion of the Generation 1 continuity family.

Overseer Rexian is a Quintesson... overseer.

Fiction

The Wreckers

Overseer Rexian commanded a detachment of Allicons and Sharkticons during the Quintesson invasion of Cybertron after the planet became techno-organic. However, the Quintessons failed to account for Decepticon prisoners on the planet who were also re-sparked during the reformatting, and Rexian's troops quickly fell before a small number of vehicular warriors, all claiming to be Thundercracker. Or maybe Sinnertwin. Wreckers: Finale Part II