Scorpius (Farscape)

Played by Wayne Pygram, he is the half-Sebaccean, half-Scarran scientist and Peacekeeper who pursues John Crichton for the secrets of wormhole technology locked in Crichton's unconscious.

While holding Crichton captive, Scorpius placed a neural clone of his own mind into Crichton's brain to get those secrets. This neural clone could influence Crichton's behaviour and appear in visions only Crichton could see. Crichton nicknamed the clone "Harvey" after the imaginary giant rabbit Jimmy Stewart talked to in the film of the same name.

Scorpius' hybrid physiology requires artificial cooling rods placed directly into his brain to keep his body temperature stable. He is much stronger than a human and has grey, lizard-like skin.