Castien was something of a sociopath. His utter disregard for other people’s feelings was startling. He didn’t seem to feel any guilt or remorse for mistreating others. To be entirely fair to his Master, Eridan was pretty sure Castien often didn’t even notice that his actions or cutting words might hurt others. Castien Idhron found people interesting only when he could use them to achieve his goals. If his Master had any feelings and emotions, they were so deeply hidden they might as well not exist.
