Nothing is known of the criminal who eventually became known as the Fool. A petty thief, he was serving time in Gotham Prison and widely regarded as feeble-minded. One night in 1947, he concocted the idea that he could blow a bubble of sufficient strength to carry his weight and float over the prison walls. Succeeding, he took up the idea that he could succeed if the crimes seemed too foolish or too obvious. Crafted a dunce-capped costume for himself, the Fool confronted Green Lantern at a new WXYZ radio program "Money For Nothing". The show offered charity money for worthless objects and the Fool learned that a priceless violin had inadvertently been thrown into the garbage and was scheduled to be offered. Stealing the seemingly worthless instrument, the Fool started a crime wave of stealing the bizarre. His second theft, a wooden carousel horse, led the Green Lantern to his hideout, where the hero was captured and placed in a dart laden death trap. After his escape, Green Lantern related his trials to a local Crime Club, a group of amateur sleuths. The Fool, caught up in the publicity of his own crime wave, impersonated the President of the club and inadvertently gave himself away during the re-telling. He was summarily returned to Gotham Prison (Green Lantern #28).
 
    The Fool was not long for prison however and soon escaped. Learning of a publicity campaign for Pop-Jacks candy ( a candy treat with a prize inside) in which real diamonds were included, the Fool stole a number of candy boxes to cover the theft of the entire run of diamonds. His racket was worked out by neophyte reporter, Ann Martin, who confronted the Fool. The Fool captured the columnists and when Green Lantern attempted to rescue her, he was likewise captured. The two were placed in a bizarre trap composed on toy train railings, but easily escaped. After the Fool committed the theft of some beauty pagent jewelry, he was promptly returned to prison (Green Lantern #31). On April Fool's Day of 1948, the Fool broke prison again. This time the eccentric criminal staged a series of odd thefts of hats. Following up on the theft of the expensive Duket Painting by the Lippy gang, the Fool was informed that the art work was cut into thirds and hidden in hats. The Fool's thefts of hatwear covered his true goal of intercepting the painting from the Lippy Gang. He was foiled by Green Lantern who deduced his plan (Comic Cavalcade #27).

The activities of the Fool since 1948 have not been recorded Whether he survived into the 21st century is a only subject of speculation.