Billy Bunny's family appeared in the Billy Bunny's Animal Songs. Members of Billy Bunny's family include his mother (performed by Kathryn Mullen) his father (Jim Martin), a brother named Ralph, a sister, and a baby. A 1993 press release for the video mentions that Billy's extended family includes 14 aunts and uncles, and 36 cousins. The puppets used for Billy Bunny's family have been seen as generic rabbits in various Muppet productions. Billy's brother and sister appear as background townspeople in Muppet Classic Theater.