The 5 Deadly Venom were the Bronze Tiger's major villains with Kobra (Regulus) being the arch-enemy. The Sensei is next and the leader of the League of Shadows. The League is the other half of the League of Assassins where Ra's Al Ghul is the leader. The Sensei (Demon Fang) and Ra's (Demon Head) are at war for total control of this assassins guild. Of course members chose sides and each side has it's own formidable killers. These three are the Sensei's top operatives; Jishi, David Cain and Professor Ojo.
Jishi's first and only appearance that I know of is in Detective 485. He's the unnamed assassin that stabbed BT in the back. This guy looks the part of a killer and should have been developed more. No fear true believer, OA1 has crafted a name and story around this guy and it will be revealed in a later post, stay tuned.
David Cain, is the father of Cassandra who was once Batgirl. The most deadliest Batgirl to date. She received parts of her training by yours truly the Bronze Tiger. With the torturous abuse that her father put her through I can only see retribution (a good beating) being dealt to Cain by her Master Ben Turner.
Professor Ojo, he's not a martial arts assassin, but a dangerous murderer none the less. Everybody knows how the mad scientist story plays out. So moving on, Ojo shows up here and there but his best appearance is in young justice the animated series that's super hot right now. Him the Sensei, Ra's Al Ghul and the League of Shadows all have shown up on the show. You guys just don't know how much I was hoping BT would show up at some point. Bradon Vietti, Greg Weisman, lets do this guys.
With continuity issues, the new 52 and the interpretation of whoevers writing, things change.
In Young Justice the LOA and Shadows are one in the same, so with that being said, we'll figure out the details together. Long live the Squad