The Scoleri Brothers
Nunzio Scoleri and Tony Scoleri, better known as the Scoleri Brothers, were convicted murderers sentenced to death by electrocution by Judge Stephen "The Hammer" Wexler in 1948 at Ossining Prison. They came back as electrical poltergeists in 1989, brought forth from the spirit realm by negatively-charged mood slime in Judge Wexler's courtroom.
Initially appearing strapped into ghostly electric chairs, Nunzio and Tony broke free and came after the judge, throwing the courtroom into complete chaos. Luckily for Judge Wexler, [/ghostbusters-2/characters/dr-peter-venkman/ Peter Venkman], [/real-ghostbusters/characters/ray-stantz/ Ray Stantz] and [/ghostbusters-2/characters/dr-egon-spengler/ Egon Spengler] were currently being tried in his court and, in return for having their judicial restraining order rescinded, the Ghostbusters were able to successfully trap the ghostly brothers.
The Scoleri Brothers are played (uncredited) by Tim Lawrence and Jim Fye in latex suits with animatronic masks. Ostensibly, Tony and Nunzio are based on the real-life Scoleri Brothers, who once robbed Harold Ramis's father Nate Ramis' store:
"The ghosts themselves were very loosely based on the fact that my father was a storekeeper who was once robbed and assaulted by the Scoleri Brothers." - [/ghostbusters-2/cast/harold-ramis/ Harold Ramis]
Some however have suggested that they might be based instead on Tony and Eddie Scoleri, who were convicted of robbing and killing a store owner in Philadelphia in the 1960s. None of this is known for certain however. They appeared as bosses in the New Ghostbusters II Video Game and the Ghostbusters II Game Boy game. They were also rumored to appear in Ghostbusters: The Video Game, but didn't. It is unknown if there were plans to feature the Scoleri Brothers in the game or if they were to appear in a possible future game.