Heiderich, Alfons

A rocket engineer who resembles Alphonse Elric and becomes friends with Edward in the film. He is captivated by Ed's tales of his journeys across his home world, yet remains skeptical about the possibility that Ed originated from a realm where alchemy exists and his brother shares his appearance. He studies under the father of modern rocketry, aiming to demonstrate the scientific merit of his fellow Germans by creating a rocket capable of carrying passengers. He also has personal urgency to complete this task quickly, as he is gradually succumbing to an unspecified illness that ultimately leads to him coughing up blood. This condition is most likely tuberculosis, given that it aligns with all his symptoms and explains why he keeps it secret.