Donatello, nicknamed Don or Donnie/Donny, is a superhero and one of the four main characters of the Teenage Mutant Ninja Turtles comics and all related media. He is the smartest and often gentlest of his brothers, wearing a purple mask over his eyes. He wields a bō staff, his primary signature weapon in all media. He is the adoptive and mutated son of Master Splinter and the... Wikipedia