Hokum Hare is an anthropomorphic hare from the fable "The Tortoise and the Hare" and is a resident of Fableland. He first meets the turtles when they travel to his world to get the "Cyranium Crystal". During their first encounter with each other Hokum Hare thinks they are the turtles who always beat him, but he insists on following them. Outwitting the Giant (from "Jack and the Beanstalk"), Hokum Hare, Leonardo and Raphael grab the "Cyranium Crystal" and climb down the Beanstalk, just as Jack chops it down. Leonardo, Raphael and Hokum go back to Earth and unite with Donatello and Michaelangelo. Together, they stop Shredder and Krang from broadcasting the "Docilizer Ray" all over the Earth. Hokum Hare gets to stand in as the Easter Bunny for the Channel 6 Easter Egg Hunt.
Hokum is seen again in Once Upon a Time Machine where he discovers that the Shredder was planning on using a time train to travel to the future and become a crime lord in an era without crimes only travel to a world where the turtles are old. After warning the Turtles, he travels with them to the future to stop Shredder's plan and help get their turtles elderly counterparts back into shape.