Peter Cratchit is the frog son of Bob and Emily Cratchit in The Muppet Christmas Carol. His siblings are Betina Cratchit, Belinda Cratchit and Tiny Tim Cratchit. Peter takes after his father, and tends to be brushed to the side by his more forceful sisters. In the character commentary on the Blu-ray, Rizzo the Rat says his real name is Peter Frog. It is unknown if he's related to Kermit the Frog.