Sloth

As the fifth Homunculus engineered by Father, this massive, muscular figure spends centuries tunneling beneath the earth to complete a massive transmutation circle. Though physically imposing, he possesses a sluggish intellect and longs for rest once his excavation ends. While the original anime portrays him as the tragic result of Edward and Alphonse Elric's failed human transmutation, his Brotherhood counterpart is a distinct, dim-witted powerhouse driven solely by his endless, subterranean labor.