Although Elmer Fudd, cast as a farmer but wearing his more familiar hunting outfit, is a major character in this cartoon, he never speaks, meaning that no one provides his voice, keeping him off the cast list here.
Bugs Bunny is mentioned by both Jose and Manuel when the two crows first encounter the Elmer Fudd scarecrow. They even mention references to the classic Bugs Bunny and Elmer Fudd cartoons of the 40s and 50s (such as Elmer chasing and hunting Bugs), and at one point Jose imitates Bugs' catchphrase "What's up, Doc?".