Gigantosaurus is the biggest loudest dinosaur in the land! He might look scary but deep down he is always looking after the four little dinosaur friends who are always in awe of him. Rocky Bill Tiny and Mazu are the 4 main characters from the hit TV series Gigantosaurus on Disney Jr. and Disney channel. They are best friends who are fascinated by Gigantosaurus. Rocky is the courageous one Bill is always looking for his next snack Tiny loves being creative and helpful and Mazu solves any problem that comes her way. Together they explore the world and have tons of fun and adventure!