Lyrical Magical Mahō no Gakkō" as part of the credited cast. He possesses a distinctive head shaped like a katsudon bowl, complete with a breaded pork cutlet resting on rice, directly mirroring his namesake dish.

Katsudonman wears his emotions on his sleeve, frequently driven to tears during arguments or difficult moments, a trait setting him apart from the generally upbeat Tendonman. He is a core member of the recurring "Donburi Trio," alongside Tendonman and Kamameshidon. The trio often engages in spirited, friendly debates that sometimes intensify, leading to brief splits within the group. Despite these clashes, they consistently reunite, revealing their deep-seated camaraderie.

His actions often involve staunchly defending his signature katsudon's quality, occasionally pushing it assertively onto others. In confrontations, particularly against foes like Baikinman, he fights alongside fellow heroes, leveraging his culinary features for both defense and offense.

Katsudonman's portrayal in this film aligns with his established role throughout the franchise: a passionate, food-themed supporting hero.