Gotham included original stories of several Batman villains including The Joker .
Originally the series would have relied only on Gordon 's early days with the Gotham City Police Department , but the series subsequently included the Wayne character and the origin stories of several Batman villains , including Penguin , Riddler , Catwoman , Poison Ivy , Scarecrow , Mr . Freeze , Hugo Strange , Ra 's al Ghul , Solomon Grundy , and The Joker .