Sensei

The Sensei (Japanese: 先生) is a supervillain appearing in American comic books published by DC Comics. The Sensei was created by writer-artist Neal Adams and first appeared in Strange Adventures #215 (December 1968). The character is a martial arts sensei and adversary of the superhero Batman, along with Deadman and several other heroes. Sensei is the father of Ra's al Ghul, the paternal grandfather of Talia al Ghul, and also the maternal great-grandfather of Damian Wayne. The character appeared on the third season of Gotham, played by Raymond J. Barry. Publication history Sensei first appeared in Strange Adventures #215 (December 1968) and was created by Neal Adams. Fictional character biography Ra's al Ghul may have founded the League of Assassins, but he would leave much of its affairs in the hands of Professor Ebeneezer Darrk and his second in command: the Sensei, an aged martial arts master from Hong Kong. After earning Ra's enmity (for reasons unknown), Darrk died during a plot to kidnap Talia al Ghul which was foiled by Batman.