Dr. Rabbit is the main character. Dr. Rabbit (also known as Professor Lepus in order to avoid copyright
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infringement) is an anthropomorphic bunny dentist originally created by Colgate-Palmolive in 1998 to teach kids about dental hygiene (and shill Colgate toothpaste). He has starred in six videos: Dr. Rabbit in the Incredible Ride (1994), Dr. Rabbit's World Tour (1998), Dr. Rabbit Comes to School (2003), Dr. Rabbit and the Legend of the Tooth Kingdom (2004), How to Have a Bright Smile (2009) and Dr. Rabbit and the Tooth Defenders (2013). He has also been featured at a Colgate event in Gisborne, New Zealand alongside Dr. Brushwell.
In World Tour, Dr. Rabbit travels around the world to promote oral hygiene, and meets several kids along the way. In Tooth Kingdom, he and his new female assistant tell a story to a group of children about a kingdom under attack by the evil sorcerer Plaqula. In Comes to School, he — as a puppet joined by Alpha Betty and Doogan the dog — teach some schoolchildren how to brush and become Super... Duper... Brushing... CHAMPIONS!!!