Batman; Robin [Dick Grayson]; Alfred Pennyworth; Snitch; John Grayson (flashback); Mary Grayson (flashback); Thomas Wayne (flashback); Martha Wayne (flashback); Joe Chill (flashback); Haly (circus owner); Boss Zucco; Wally; Jarvis Pennyworth (flashback); Boss Maroni; Joker [also as Red Hood]; Two-Face; Black Spider (cameo); Catwoman (cameo); Mr. Freeze (cameo); Tweedledee (cameo); Tweedledum (cameo); Prof. Milo (cameo); Penguin (cameo); Poison Ivy (cameo); Killer Moth (cameo); Gentleman Ghost (cameo); Ra's al Ghul (cameo); Riddler (cameo); Scarecrow (cameo); Hugo Strange (cameo)
When Robin joins Batman's search for the person who stole his father's costume he recalls his own origin and early life as both Robin and Bruce Wayne's ward. After conferring with Robin, Alfred too recalls how he came to work for Bruce Wayne and for Batman. Meanwhile, Batman begins to review his many enemies, including the Joker and Two-Face, but is nearly taken out by a booby-trapped Batmobile.