Maybach Wilhelm is the First Lieutenant and adjutant serving as confidential subordinate to Isuzu Ichinose aboard the space battleship Tiramisu. He is consistently depicted at Isuzu's side during official duties, possessing black hair and cyan eyes.

Functioning as Isuzu's subordinate, he acts as the primary voice of reason and common sense within their working relationship, counterbalancing Isuzu's more eccentric behavior. This dynamic includes his unexplained practice of referring to his superior as "Colon Ikkkun."

The documented media provides no concrete information regarding his background story, origins, or personal history. Similarly, his character development across seasons, OVAs, or other franchise extensions remains unexplored. The narrative focuses solely on his established professional association with Isuzu as commander and adjutant.