Months after that event, Boomerang and some other super-villains decided to form a group as the "all-new" Sinister Six. They fought Spider-Man (Otto Octavius in the body of Peter Parker at the time), who captured one of their members, The Living Brain, reprogramming it to serve him. Boomerang continued to call the team the "Sinister Six" in absence of a sixth member, reasoning "what's a better deal than being the Sinister Six, but only splitting the money five ways?" Boomerang directed the team on various heists for his own self-serving ulterior motives, at one point recruiting a small army of super-villains with the help of Owl's connections and calling it the "Sinister Sixteen." The team eventually broke up after Boomerang had thoroughly screwed everyone over, including himself
Members:
Boomerang
The Shocker
Speed Demon
Hydro-Man
Overdrive
Former Members:
Living Brain
Additional Members that made up "The Sinister Sixteen":
The Beetle
Armadillo
Bi-Beast
Clown
Cyclone
Fly
Kangaroo
Man Mountain Marko
Mirage
Scorcher
Shriek
The Spot
The Squid