AboutWilliam T. Spears is a supervisor from the Dispatch Management Division of the Shinigami. He is also, briefly, part of the Noah's Ark Circus, where he goes by the stage name Suit.
William is emotionless and generally calm. In regards to his job, he is strict, follows the rules precisely, and seems extremely devoted. He does not take kindly to individuals who cause problems or create more work for him, particularly if it forces him to apologize for their actions. Nonetheless, he seems to share Ronald's distaste for overtime work.
He has no qualms with inflicting minor injury on others, as shown when he jumps off a roof to land on Grell Sutcliff's head and when he uses his death scythe to attack Sebastian on a variety of occasions.
He finds demons to be disgusting creatures, and is seen calling Sebastian Michaelis a variety of names, including "devilish fiend," "leech," and "hound." However, it is implied that he finds other demons to be even more abhorrent than Sebastian.
However, he does not seem to like anyone very much, as Ronald comments that William is disappointed to see him, and he insults a variety of individuals, including Grell, Sebastian, and Ciel Phantomhive.