Marshall Pharmaceuticals

Marshall Pharmaceuticals was a business owned by the late Maggia chemist Simon Marshall. It was this company that performed experimental drug testing on two captive runaways, Tandy Bowen and Tyrone Johnson, ultimately giving them superhuman powers. They take on the identities of Cloak and Dagger and waged a crusade against all drug traffickers.

NYPD officer Brigid O'Reilly was betrayed by several corrupt detectives and locked inside of a gas chamber in a Marshall Pharmaceuticals warehouse on the Furman Street Piers. She died, but was reborn as Mayhem.