Name: Croc
Universe: Earth-1
Alter Ego: Waylon Jones
Occupation: Professional Criminal
Marital Status: Single
Group Affiliation: None
Base of Operations: Gotham City
Known Relatives: Unnamed Aunt
Height: 6 ft. 5 in.
Weight: 268 lbs.
Hair Color: None
Eye Color: Red
First Appearance: Detective Comics #523

History:
Born in a Florida slum to an unwed mother who died giving birth to him, Waylon Jones was raised by a deadbeat alcoholic aunt. Cursed with a hideous hereditary disease that gave his skin a scaly, reptilian look, Waylon was tormented by his playmates until he finally fought back, crippling one of them.

Abused even more in reform school, Waylon soon became a habitual criminal, spending the rest of his adolescence in and out of juvenile hall until he was 16, when he killed with his bare hands a fellow inmate who had insulted his bizarre looks. Condemned to death for the crime, Waylon was sent to state prison, where his sentence was eventually commuted to life imprisonment.

Paroled after eighteen years behind bars, Waylon found a job at a carnival sideshow wrestling alligators while billed as "Killer Croc". Eventually, Waylon left the carnival and disappeared into the criminal underground, surfacing months later in Gotham City, working as a small-time extortionist.

When the criminal mastermind known only as Squid attempted to unite the Gotham underground, Croc saw his chance to move into the big time. Murdering Squid in cold blood, Croc used his brute strength and animal savagery to unite Gotham's criminals under his own rule by promising to eliminate their greatest foe, the caped crimefighter known as the Batman.

In the course of his efforts to eliminate the Batman, Croc was responsible for the murders of circus aerialists Joe and Trina Todd, parents of young Jason Todd, who would later become the new Robin.

Despite his gathering a small army of the Batman's greatest foes to assist him, Croc eventually ended up back behind prison bars, where he is currently serving a life sentence, this time without hope of parole.

Powers:
Though possessing no true super-powers, Croc is a savage and abnormally strong hand-to-hand combatant, easily capable of killing an opponent with his bare hands. A conscienceless killer blessed with almost limitless stamina and leather-tough skin, Croc is one of the fiercest foes the Batman has ever faced.