Marvin T. Milk / Mother's Milk

Mother's Milk, the Boys' fastidious, germaphobic investigator-in-chief, regrets leaving his job as a juvenile counselor and reconnecting with Billy Butcher. All he wanted was to stand up to Vought and avenge his father's tragic ending, but his decision to trust Butcher quickly proved foolish – now his wife and daughter are in witness protection while he's holed up in a grimy basement. Sooner or later, MM faces a choice – keep fighting, or give up forever and go back to his family – but can he really let the fight go?