|Real Name||Yoru (First name unknown)|
|Affiliations||Chu Chin Li|
|Powers and abilities||Master at Ninjutsu|
|Voiced by||George Takei|
Yoru was a Japanese martial arts teacher who ran a secret ninja training school. He was voiced by George Takei.
During his training Bruce Wayne went to Japan to learn ninjutsu. There he met Sensei Yoru. Yoru saw Bruce's drive and determination and invited him to his secret ninja training school. For several years Bruce studied under Yoru, until his training was complete.