The show's version of The Penguin is obviously influenced by Danny DeVito's appearance in Batman Returns (1992): Obsessed with eating fish and his hands are deformed to the point of looking like Penguin Flippers
Penguin's real name is Oswald Cobblepot.
DEBUT: The Penguin (episode 1.02 "Call of the Cobblepot")
This episode shows the introduction of Penguin and the Kabuki Twins.