What is Spider's surname in Avatar: Fire and Ash?

Spider’s surname in Avatar: Fire and Ash is Socorro. His full name is Miles “Spider” Socorro, although he is usually known by the nickname Spider rather than by his given name.

Spider is a human teenager who was born on Pandora and grew up around the surviving members of the Sully family. Unlike the Na’vi, he cannot breathe Pandora’s atmosphere naturally, so he normally needs an exopack or breathing mask outside human-controlled environments. His close relationship with the Sullys gives him a family connection to Jake, Neytiri, and their children even though he is biologically human.

The surname can be confused with Wainfleet, Spellman, or Sully because those names are associated with other characters or families in the Avatar universe. Spider is connected to Colonel Miles Quaritch as his biological father, but Socorro is Spider’s surname. The name also links him to his mother, Paz Socorro, an RDA pilot whose history is part of Spider’s backstory.