Why did Milligan wear disguises?

Milligan wore disguises primarily to hide from past enemies due to his amnesia. This aspect of his character is significant as it adds depth to his backstory. Having forgotten much about his own identity and experiences, he employs various disguises as a protective measure. This not only helps him evade those who might recognize him from his past life but also reflects his complex journey of self-discovery throughout the narrative. His use of disguises symbolizes the themes of identity and the search for belonging, which are central to the story, as he navigates a world where he must relearn who he is while safeguarding himself from lurking dangers.