Narduras Eowithrawyn Viperconda:
Qalosian Sage.
A Dwelf - half-dwarf, half-elf, yet both races are generally at war...
A samurai with skills beyond compare.
His katana is a zanpakuto, but he never uses Shikai or Bankai; he doesn't tell anyone its name, but its name means "tranquil skies".
His Sage Crest is on his neck.