Character Reference (Spoiler)

Dean Sutton (MC)

Dick Grayson (Robin)

Alfred Pennyworth

Jim Gordon

Harvey Bullock

Barbara Gordon (Batgirl)

Oswald Cobblepot (Penguin)

Ignatius Ogilvy

Lark

Vicki Vale

Clayface

Garfield Lynns (Firefly)

Bruce Wayne (Batman)

Selina Kyle (Catwoman)

Cassandra Cain

Kirk Langstrom (Man-Bat)

Francine Langstrom 

Edward Nygma (Riddler)

Noah Kuttler (Calculator)

William Ethan (OC)

Joey Cicero (OC)

Evelyn Chandler (OC)

Imperceptible Man 

The Hypnotic

Mr. Toxic 

Mr. Combustible