790 is a robot head. He once had a body but it was eaten by a Cluster lizard while he was performing Zev's love slave transformation. He received the mental conditioning of the transformation and is therefore in love with Zev/Xev. Most of his time is spent obsessing over her. He also is a very powerful computer, processing courses for the Lexx to take and probabilities of escaping His Devine Shadow. He also provides detailed information to the crew of the Lexx when needed. Since 790 is in love with Zev/Xev he views Stanley as a threat and continually plots to kill him.