First Appearance: Detective Comics (vol. 1) #341 (July 1965): "The Joker's Comedy Capers"
Number of Appearances: 1
Note: Joker impersonated comedian "Banjo" (based on Harpo Marx)
Batman referred to Banjo as "Banjo the pantomime artist."
Suggested links for further research about this character and the character's religious affiliation: