Workshop

Something like this. I tried to make the roles themselves simpler, but so that they would differ from each other. I reworked the old idea of a Batman-themed mafia. I really didn't like the fact that, with such a colossal gallery of awesome Batman enemies, there were only a couple of thugs in that mafia. Now I've fixed it. Since I decided to show off and use the real names of the characters, this information may be useful:

Jack Napier - Joker.
Harleen Quinzel - Harley Quinn.
Jonathan Crane - Scarecrow.
Hugo Strange - N/A
Pamela Isley - Poison Ivy.
Victor Fries - Mr. Freeze.
Ra's al Ghul - N/A
Matthew Hagen - Clayface.
Edward Nygma - Riddler.
Temple Fugate - Clock King.
Arnold Wesker - Ventriloquist.
Mary Dahl - Dollmaker? Baby Doll, I don't know how they adapted her into Russian.
Oswald Cobblepot - Penguin.
Jervis Tetch - Mad Hatter.
Kirk Langstrom - Man-Bat (no, this is not a joke, it really is Man-Bat).
Maximilian Zeus - N/A
Garfield Lynns - Firefly.
Waylon "Morgan" Jones - Killer Croc.
Bane - N/A

Bruce Wayne - Batman.
Richard "Dick" Grayson - Nightwing, the first Robin.
Timothy "Tim" Drake - Robin, Red Robin, the second Robin (actually the third, but Jason Todd was skipped in the DC Animated Universe).
Commissioner James Gordon - N/A
Barbara Gordon - Batgirl.
Alfred Pennyworth - N/A

Selina Kyle - Catwoman.

Harvey Dent - Two-Face.

Andrea Beaumont - Phantasm (alert, spoiler for the full-length film!).