Bud and Lou are happy to see their mistress.

Bud and Lou[1] were a pair of hyenas owned by the Joker and Harley Quinn. Harley was their primary caretaker, and she affectionately referred to them as her "babies."

Background information

Bud and Lou are named after comedy duo Bud Abbott and Lou Costello. The basic idea of Joker having hyenas as pets was later carried over to numerous other media, although he had previously owned a hyena named "Giggles" in the 1977 Filmation animated series The New Adventures of Batman.

According to the DVD commentary for Batman Beyond: Return of the Joker, the addition of the character Woof, a gene-spliced hybrid of man and hyena, as a member of the Jokerz gang was a direct homage to Bud and Lou.


Dispite being Jokers dogs harley cared for them more as she was worried when Joker was going to nuke gotham whiile leaving the hyenas to die.


Batman: The Animated Series

The New Batman Adventures


  1. Dini, Paul (writer) & Riba, Dan (director) (February 21, 1998). "Joker's Millions". The New Batman Adventures. Episode 7 (airdate). Episode 7 (production). Season 1. Kids WB!.
Community content is available under CC-BY-SA unless otherwise noted.