McBain Gang which is lead by Webby McBain is ghost group of gangsters.
Webby McBain was a crime boss from the 1920s who had a rivalry with Caesar Caldoni, the biggest mob boss in history. Long after their deaths, Webby and his gang returned from the dead as ghosts. They went on a rampage riding past New York and shooting everything. Eventually, the Ghostbusters succeeded in trapping all of the ghosts. Caldoni's ghost is then informed by his men that Webby was captured by the Ghostbusters.
Hat was a member of McBain's gang who was invisible and named for wearing a top hat.
Finger was a member of McBain's gang.
Bugsy looked like a walking pile of slime in a gangster outfit.
Axe used an axe.
Bones was a member of the gang who had a skeletal appearance.