Plutus

 was a member of the Celestial Intervention Agency and told Livia about the Monan Host. After Livia became president he became acting Castellan. He thought that Leela might have been the been the cause of the explosion in the Monan Host embassy. He was part of the conspiracy by the Warpsmiths and framed Raldeth for it. Livia found out and had him arrested but he kidnapped her. (AUDIO: Enemy Lines)