Dustin's 
Page O' Tenchi

Dr. Clay

Doctor Clay was a professor at the Galactic Science Academy until his unwilling retirement. He taught alongside Washu and had a close relationship with her. But even then she could tell that he was evil. He used his intelligence to create weapons of mass destruction.

Dr. Clay has been working for Tokimi, who he calls "Lady Tokimi". She commissions him with a mission to capture Washu and bring her in. He thinks that this will be a fairly easy task but he knows that it has its risks.

His plan is to capture Ryoko and use his robot named Zero who has the ability to copy anything and mimic it to perfection. Zero seems to have maintained some memories from previous missions despite his repeated attempts to remove them. Zero and Dr. Clay manage to capture Ryoko and copy her. They have a hard time copying Ryoko's gems so as a result they take the originals from Ryoko.

Zero cannot capture Washu because she has the copied feelings for Tenchi  that Ryoko does and this forbids her from doing anything that will anger Tenchi.

Dr. Clay also has a character flaw of an immense ego. This is his downfall because he puts his logo on everything that he likes the most. Washu figures this out and finds him within his ship.

After Zero turns against him he disables the robot and sets the ship to self-destruct. He escapes in an escape pod. After the ship's core overloads and forms a black hole he sees Tenchi using the Lighthawk wings to save Mihoshi and Ayeka. While stunned by this he crashes into Ryo-Ohki and is captured. After capture Mihoshi brings him in a stasis cell and Tokimi erases his memory of her.