Michael Fisher is Howl's 15 year old apprentice. He originally lived in Porthaven until both his parents died, leaving him an orphan. He had to leave his house because he couldn't pay the rent and slept on Howl's doorstep. Howl found him there one morning and told him to stay inside whilst he went out. Michael started talking to Calcifer and he believes that Howl was impressed with this when he returned. Howl didn't tell him to leave but he also didn't tell him to stay, so Michael started helping out of his own accord. He eventually became Howl's apprentice, and he does his best to make sure that Howl doesn't spend all their money. He often goes to Cesari's, a bakery in Market Chipping, where he buys pies and other baked goods. He met Martha there and fell in love with her. Sophie later realizes that she saw Michael at Cesari's on May Day before she was cursed by the Witch of the Waste. He's described by Sophie as "a nice boy, but a bit helpless in a crisis." He's rather nice and patient but isn't quite as fast-thinking as Howl, therefore making Mrs. Pentstemmon say he was "not smart enough to make trouble.Calcifer is Howl's resident fire demon. As the result of a mysterious bargain with Howl some years ago he agrees to heat and power the castle. Although he is bound to the hearth he has a great amount of magic. He promises to use his magic to break the curse on Sophie, providing she breaks the contract between him and Howl. Howl describes Calcifer as "his weakest point", because Calcifer wouldn't give away another demon if it entered the castle, even if it had hostile intentions. However, Howl's statement is true in more ways than one.