TV-Series
Description
Mattheus Callaway is a supporting character in the anime series Chaika - The Coffin Princess Avenging Battle. He serves as a wizard within the Postwar Reconstruction Implementation Agency, commonly referred to as the Kleeman Agency, and is assigned to the Gillette Corps. His background includes training as a monk, which provides him with a disciplined spiritual foundation that influences both his demeanor and his approach to combat and reconnaissance.

Callaway is physically distinctive: he is bald and bears a marked face. He possesses gray eyes. As a wizard, his primary abilities center on the control of creatures, specifically feila, which he can direct for tactical purposes. He also specializes in long-range communication magic and the covert deployment of abandoned beasts for reconnaissance, making him an effective intelligence asset for his squad. In addition to his magical skills, he is capable of operating the Gillette Corps' mechanical carriage known as the April.

In terms of personality, Callaway is depicted as disciplined and reliable, a steady presence within his unit. His motivations align with the objectives of the Kleeman Agency: initially, he and his squad are tasked with capturing the white-haired Chaika Trabant to prevent her from gathering the remains of Emperor Arthur Gaz, and later they shift to recovering the remains themselves. He follows orders and supports his team through his specialized magical support role.

Throughout the story, Callaway functions as part of the Kiryat Squad, a specialized unit of the Six-Nation Council. His relationships are primarily professional, working alongside other members of the Gillette Corps such as its leader, Albéric Gillette, and fellow operatives. He does not undergo significant personal development over the course of the series, remaining a consistent background presence who provides logistical and magical support during key missions. His role underscores the broader efforts of the postwar reconstruction forces to control the fallout from the fall of the Gaz Empire.