But wait there's more. Elly May's rhino, Carl Reineroceros, is voiced by Carl Reiner. And Melephant Brooks is voiced by Mel Brooks. That's a long time to wait for an Easter egg. And none of the kids in the movie theater got it but Roberta. She was like, "Oh my god mom I know that voice! Oh wow that's Carol Burnett's voice! Oh my gosh!"