The Penguin
This is one of the best "superhero" pieces of media ever. As someone who loved the first couple of seasons of Gotham I remember praying for more of the organized crime side of the batverse. This delivers on that prayer more than I could of ever hoped. Everyone has already said it but I will reiterate. Colin Farrell destroys this role. Cristin Milioti also does an amazing job. You get the real Jersey experience. You fall in love with a fat disgusting Italian and then he fucks it up. Multiple times.