The fanmade character from fnaf animation called Mr Capgras by samilose the original song was based from willwood music it was known for his rock/jazz musical style 
However this model of him was known as Creature bonnie he often came off as shadow bonnie representation same thing with Error 404 model but likely sinister and monstrosity
He was shown himself torturing scraptrap in FFPS by stalking him everywhere and often ending up getting caught by the other animtronics aka. The Missing kids 