Character
Roger Elliot Flashback, Tim Drake, Mr. Terrific, Harley Quinn (Flashback) (Cameo), Batman (Bruce Wayne), Pamela Isley (Cameo), Officer Levin, hush (Villain), Michael Holt, Doctor Aesop (Death) (Villain) (First Appearance), Barbara Gordon, Peyton Riley Flashback, Victor Fries (Flashback) (Villain), Harleen Quinzel (Cameo), Oracle (Cameo), Zatanna, Tweedledum (Dumson Tweed), Selina Kyle, Thomas Elliot, Villain, The Wonderland Gang Tweedledee (Deever Tweed), James Gordon, hush (Origin) (Villain), Poison Ivy (Cameo), Marla Elliot Flashback, Robin, Thomas Elliot (Villain), Oswald Cobblepot (Cameo), Dr. Mid-Nite, Thomas Elliot (Origin) (Villain), Dick Grayson, Alfred Pennyworth, Catwoman, Harleen Quinzel (Flashback) (Cameo), Harley Quinn (Cameo), Death, Penguin (Cameo), Batman (Bruce Wayne) (Also As Lefty Knox), Peyton Riley (Flashback), Scarecrow (Villain), Oracle, Joker (Flashback) (Cameo), Pieter Cross, Milt, Hush, Colin, Nurse Margaret, Barbara Gordon (Cameo), Poison Ivy (Flashback) (Cameo), Thomas Wayne (Flashback), The Carpenter (Jenna Duffy) (Villains), Riddler (Flashback) (Cameo), Nightwing, Marla Elliot (Flashback), Mr. Freeze (Flashback) (Villain), The Walrus (Moe Blum), Pamela Isley (Flashback) (Cameo), Jonathan Crane (Villain), Edward Nigma (Flashback) (Cameo), Mr. Prescott Flashback, Batman (Also As Lefty Knox), Joker (Villain), Slam Bradley (Cameo)
