is the riddler and the joker the same character
Riddler The fallout from the Riddler's failed scheme is played out in Batman: Gotham Knights #50-53. In the story "Pushback", Hush reappears and beats Riddler senseless across a rooftop. Seeking refuge, Riddler goes to the Joker and the Penguin. He offers to tell the Joker who had killed his pregnant wife Jeannie if the Clown Prince of Crime would protect him from Hush. Joker immediately agrees, but eventually Hush, with the help of the impostor Prometheus, defeats him, forcing Riddler to flee for his life.
Harley Quinn Harley Quinn is the frequent accomplice and lover of the Joker, whom she met while working as a psychologist at Gotham City's Arkham Asylum, where the Joker was a patient. Her name is a play on the name "Harlequin", a character which originated in the commedia dell'arte. The character has occasionally been depicted as an antihero, and she has teamed up with fellow villains Catwoman and Poison Ivy, the latter serving as Quinn's close friend, recurring ally, and romantic interest. Harley Quinn has also been depicted as a member of the Suicide Squad.