I'm going to give it a chance, but so far "Gotham" has suffered from character overload. I guess the producers had to get as much out there as possible, to try and sell the network on the idea, but a slow reveal of the characters would have been a much better idea. So far we've got:
James Gordon (Commissioner Gordon)
Harvey Bullock (dirty cop from the comics)
Bruce Wayne (already on track to become Batman)
Alfred Pennyworth (Wayne's butler)
Oswald Cobblepot (The Penguin)
Edward Nigma ('E.Nigma', aka The Riddler)
'Cat', aka Selina Kyle (Catwoman)
Ivy Pepper (Poison Ivy)
... and depending upon which storyline they use, The Joker could be the one who killed Wayne's parents.
That's just what I recognize so far, off the top of my head, just two episodes into it.