The Masked Mugger
Species: Orca

Agent Wallree Goes to the Museum

The Masked Mugger is a raccoon villian whose only appearance is in Agent Wallree Goes to the Museum, when he steals Wallingstein's Diamond. At the end of the book he is arrested by Agent Wallree.


  • None.


  • He is never seen, because his only appearance is on the radio show.
  • He is one of the only people living in New Walrus City that isn't a walrus.