"Here's another curse -- may all your bacon burn!" Calcifer is bound to the confines of Howl's Castle after he struck a deal with Howl years prior. He later strikes another magical bargain with Sophie, hoping she can break his curse. Calcifer cares about Howl, Sophie, and their makeshift family despite his grandiose threats and prickly demeanor. He worries about Howl's penchant for war and that it will inevitably change him.Calcifier appears as a living ball of fire with eyes and a mouth. He is usually orange-yellow, but this seems to change with his emotions and size. Calcifier's size also changes depending on the type and amount of fuel he is running on.