There are two similar, smaller creatures in the film My Neighbor Totoro, also referred to as totoro. The big grey fella is named "O-Totoro" or "Miminzuku". The middle one is "Chu-Totoro" or "Zuku". The smallest of the pack is "Chibi-Totoro" or "Mini". These names do not appear in the film itself, but are used in ancillary materials and products.