Dane Cook, gimlet-eyed observer of man’s everyday foibles and inventor of the “SuperFinger,” will soon alight upon the Broadway stage, where he will perform in a spring production of Neil LaBute’s Fat Pig. Cook will star as the “obnoxious pal” of star Josh Hamilton, who plays a dude who begins dating an overweight woman. Cook describes his role as “a character that hopefully people will love to hate.” Shouldn’t be too hard.