Atlan was the leader of the Space Rats on Caspar. Though his followers were unaware that he himself was not one of them, Plaxton was aware. He coerced Plaxton into creating a photonic drive for use in his space choppers, which he intended to use to take over all of the trade routes used by the Terran Federation.
He was presumed killed when Kerr Avon detonated a grenade under his trike.
Atlan is derived from Blake's 7.