Kidor like all other reptilians is an individualist and selfishly acts according to his own desires and is prone to betray any human ally except his own kind. He is perplexed by humankind's emotional attachments and loyalties to loved ones.
Kidor appear as Juli's guest at her lab in the Arraial Island leading an army to devastate Aghartha kingdom. When the League of the Well tried to save Mary Mayer he ordered his men to kill the intruders however they have underestimated their powers for believing to attack at great numbers. Kidor engaged in hand-to-hand combat with Aristotle who wind up winning by kicking Kidor in his cubes. Kidor becomes very upset over the victory of the League of Well and now is planning an invasion of the Agartha Kingdom.