Batman: Arkham Origins Edit
- Thomas Wayne - Shot by Joe Chill before the events of the game.
- Martha Wayne - Shot my Joe Chill before the events of the game.
- Commisioner Loeb - Locked in the prison's gas chamber by one of Black Mask's thugs, then poisoned to death by the poisonous fumes.
- Bank Manager - Poisoned by Joker with laughing gas.
- Electracutioner - Kicked out a window by Joker, and fell 30 floors down.
- Joker's 2 Thugs - Shot by Joker.
Batman: Arkham Asylum Edit
- Several Security Guards - Killed off-screen by Frank Boles.
- 2 Security Guards - Shot by Blackgate Prisoners.
- Frank Boles - Murdered by Joker. (He can be found dead well he was strapped to a prisoner movement handcart with a smile green painted across his mouth and a sign reading "Dead End" chained around his waist)
- Dr. Penelope Young - Blown up by one of Joker's bombs.
- Security Guard - Pushed in the water full of electricity by Joker.
Batman: Arkham City Edit
- Solomon Grundy - Rib cage pulled off, then heart pulled and ripped apart by Batman.
- Hugo Strange - Stabbed by Ra's al Ghul.
- Ra's al Ghul - Accidentally impaled himself with his own sword. (Note: His followers later came and took him away and revived him again)
- Talia al Ghul - Shot by Joker.
- Clayface - Stabbed and sliced apart by Batman with Talia al Ghul's sword.
- Joker - Succumbed to his Titan poison, and later cremated, which happens at the beginning of "Batman Arkham Knight".
Batman: Arkham Knight Edit
- Barbara Gordon (Oracle) - Pointed the gun on her own head and suicide. (Hallucination)
- Harley's Thug - Shot by Christina Bell.
- Christina Bell - Shot off-screen by Henry Adams.
- Johnny Charisma - Shot off-screen or on-screen by Henry Adams.
- Albert King - Shot off-screen or on-screen by Henry Adams.
- Henry Adams - Infected by Joker, then pointed the gun on his own head and suicide.
- Jason Todd (2nd Robin) - Shot by Joker. (Hallucination)
- Poison Ivy - Got rid of Scarecrow's gas, and fell into Batman's arms, then passed away and disintegrated into airborn particles and finally became one with nature. "Nature always wins"
- Killer Croc - Knocked out by Joker's Jokermobile. (Hallucination)
- Penguin - Shot by Joker. (Hallucination)
- Riddler - Shot by Joker. (Hallucination)
- Two-Face - Shot by Joker. (Hallucination)
- Bruce Wayne (Batman) - Presumably killed when his Wayne Manor exploded. "This is how it happened, this is how the Batman died"