Fine Doctor Crane, I'll keep working on your Cloudburst but I'll keep working on your toxin as well. I'll show him there's money to be made here, one way or another.
~ Simon Stagg's research note aboard his airship

Simon Stagg was a minor villain in the 2015 Rocksteady action game Batman: Arkham Knight. He is a corrupt and cowardly CEO who struck a deal with Scarecrow to manufacture his dispersal device, The Cloudburst until he betrayed Crane to make a profit with his Fear Toxin.


20 years ago Stagg went into business with his partner and close friend, Alex Satarious. Together they opened up a pharmaceutical company, Stagg Industries however one day their company ran out of money and Stagg reduced to selling weapons on the black market which unsettled Satarious but Stagg was perfectly comfortable.

Eventually Stagg ran into Jonathan Crane where they struck a deal to help him manufacture The Cloudburst (a dispersal unit to help spread his Fear Toxin on a massive scale). Eventually Satarious could no longer withstand these immoral deeds and recorded all of the terrible actions Stagg had performed (including human experimentation on his Fear Toxin) but Stagg caught wing of this and had Satarious killed.

When Scarecrow discovered about Stagg's treachery he was enraged but before he could do anything Stagg fled to Gotham.

In Arkham Knight

The Arkham Knight did find Scarecrow however and anchored his airship so he wouldn't get away. They had no choice but to keep him alive and charge the Cloudburst themselves. He was saved by Batman but was captured yet again. Eventually Stagg was able to give Batman his location before he was gassed by Fear Toxin and knocked out.

However Batman returned to Stagg's airships where he needed his help into deactivating the Cloudburst. After The Cloudburst Tank was destroyed he was locked up in GCPD.


  • It's odd that he's a villain in a Batman game as Simon Stagg is normally a Flash villain.
           Arkhamverse Villains

Alberto Falcone | Arkham Knight | Anarky | Bane | Bird | Black Mask | Calendar Man | Clayface | Copperhead | Deacon Blackfire | Deadshot | Deathstroke | Electrocutioner | Ferris Boyle | Firefly | Harley Quinn | Henry Adams | Hugo Strange | Hush | Joker | Killer Croc | Mad Hatter | Man-Bat | Mr. Freeze | Mr. Hammer | Penguin | Poison Ivy | Professor Pyg | Ra's al Ghul | Ricky LeBlanc | Riddler | Scarecrow | Shiva | Sickle | Simon Stagg | Solomon Grundy | Tracey Buxton | Two-Face | Quincy Sharp | Zsasz | Warden Ranken
Arkham Knight's Militia | Joker's Gang | Penguin's Gang | Thugs | Scarecrow's Army