Who was the Captain of Squad 10 before Toshiro Hitsugaya?
To date, there is no suggestion as to who predated Captain Hitsugaya as the commanding officer of the Tenth Division. However, it is known that the Assistant Captain, Rangiku Matsumoto, has held her position longer than Hitsugaya has held his. It bears repeating that he is the youngest Soul Reaper to ever be a Captain.