The Joker is one of the main antagonists in the Batman 1960s series and one of the most recurring villains. He is Batman's greatest enemy and one his most dangerous foes.

Joker (Batman 1966)
Publication Information
First appearance "The Joker Is Wild"
Created by Bob Kane & Bill Finger (concept)
Cesar Romero (actor)
Origin N/A
Biographical Information
True Identity Unknown
Hair Green
Eyes Brown
Height Unknown
Weight Unknown
Skin color Chalk White
Gender Male
Affiliations N/A
Partner(s) Penguin (occasional)
Riddler (occasional)
Catwoman (occasional)
Known alias(es) Clown Prince of Crime
Abilities Genius-level intelligence
Skilled inventor
Complete unpredictability
Arch-nemesis Batman