Zombieman/Relationships

Dr. Genus
Dr. Genus experimented on Zombieman as part of the immortal series. He escaped their clutches and ever since hunted for any clues on the House of Evolution's whereabouts. After confronting him, Zombieman realized Dr. Genus' had truly given up on finding the perfect creature and decided to let them go.

Sweet Mask
Zombieman dislikes Sweet Mask and was not willing to be put under his control. He would give up his credit for the Monster Association raid if it would convince Sweet Mask to lead the surface strike force.

Child Emperor
Zombieman has a good relationship with Child Emperor and is one of the only people who regards him with respect despite of his age. Zombieman used the information about enemy machines given to him by Child Emperor, which proved to be very useful, and openly thanked the young hero for that information. Zombieman even went so far as to say he was glad Child Emperor was on the strike force and actually offered to get milkshakes once the invasion was over, demonstrating the friendly demeanor Zombieman has towards Child Emperor.

Saitama
When Saitama heard of Zombieman's immortality by Genos he became interested in the S-class hero and asked him if the rumors were actually true, although Zombieman looked rather displeased by having Saitama around, due to his rank. When Dr. Genus later warned him about Saitama's strength, Zombieman refused to believe him, even thinking that the former scientist was making fun of him.

After witnessing Saitama's fight against Garou however, he completely changed his mind about Saitama, realizing that everything Genus said about him was true. He then visited Genus again and asked him to remove his limiter as well and to make him equal to Saitama, as he started to feel inferior to the B-Class Hero. Zombieman was shocked, when Genus told him that he can't do so, but the scientist still decided to help him, by showing him something "interesting" in his basement.