Prankster
The so-called "clown king of the underworld" (S No. 69/1, Mar/Apr 1951: "The Prankster's Apprentice!"), a "cunning" and "ruthless" criminal with "a dangerous sense of humor" (S No. 50/2, Jan/Feb 1948: "The Slogans that Came Too True!") who is forever playing pranks on people, including his own henchmen (Act No. 104, Jan 1947: "Candytown, USA"; and others), and who likes nothing better than to pull an uproarious prank-filled crime while at the same time making a monkey out of Superman (S No. 55/1, Nov/Dec 1948: "Prankster's Second Childhood"; and others).
Lois Lane has described the Prankster as “the most dangerous of all practical jokers†(S No. 37/2, Nov/Dec ‘45: “Pranks for Profit!â€), while Superman has referred to him as an “addle-brained foul ball†(S No. 50/2, Jan/Feb 1948: “The Slogans That Came Too True!â€) and Clark Kent has called him an “overgrown juvenile delinquent†(S No. 61/1, Nov/Dec 1949: “The Prankster’s Radio Program!â€). Even the underworld is wary of the Prankster, for in the words of gangster “Bugs†Halloway, “He’s got a reputation for making saps outa smart guys†(S No. 22/3, May/Jun 1943: “The Great ABC Panic!â€).