Caster is a troubled person, having lost the woman he admired.[3] Like his Master, he is almost devoid of any morality, and has no interest in obtaining the Holy Grail until he meets Saber. Caster initially expresses an interest in Saber, appearing to be familiar with how she came to ruin at the end of her life. In truth, it is because he has mistaken her for Joan of Arc, whom he had been infatuated with when alive. Even after Saber reveals her true identity, Caster continues to delude himself, believing that her memories were warped by the trauma of her death. He even makes plans to capture Saber and force her to remember her 'true' past.