Last Updated on: February 14th, 2023

Gigantosaurus (Disney Junior Show)

“Gigantosaurus” is an animated children’s television series that premiered on Disney Junior on January 18, 2019. The show is based on the book series of the same name written by Jonny Duddle.

The series follows the adventures of four young dinosaur friends—Rocky, Bill, Tiny, and Mazu—living in the prehistoric world of Cretacia. They embark on thrilling adventures and explore their vast and vibrant environment.

The main character, Rocky, is a courageous and inventive young triceratops. He is joined by his three best friends, each representing a different dinosaur species with unique characteristics. Bill is a friendly and curious brachiosaurus, Tiny is a confident and fearless triceratops, and Mazu is a smart and resourceful ankylosaurus.

Throughout the series, the friends encounter various challenges, obstacles, and exciting discoveries, often related to the presence of the Gigantosaurus—a massive and legendary dinosaur that is both a source of fear and fascination for them.

“Gigantosaurus” combines fun, humor, and educational elements to entertain and engage young viewers. The show promotes teamwork, problem-solving, and friendship while introducing children to concepts about prehistoric creatures and the natural world.

The series has been well-received by young audiences, and its vibrant animation style, catchy theme song, and adventurous storylines have made it a hit on Disney Junior.

Additional Details:


  • Benjamin Jacobson: Marshall
  • Asia Mattu: Rugo
  • Dylan Schombing: Rocky
  • Aine Sunderland: Tiny
  • Nicholas Holmes: Bill


  • Director: Olivier Lelardoux
  • Producer: Pierre Sissmann
  • Associate Producers: Dominique Bourse and Olivier Lelardoux

Episode List:

Show Trailer:

About the Author

Craig Smith
I am founder and editor of My passion for all things Disney goes pretty far back to my first trip to Walt Disney World in the mid-80's. I have since returned to the magical place more than 20 times. I started this site when I came to the realization that I spent a significant portion of my day reading articles about Disney and watching Disney content with my 8-year old, so it made sense that I would start sharing some of what I read and see and building a little community around it. Other interests include 80's nostalgia, vintage toys, video games, LEGO, Star Wars and tech gadgets. Other sites include DMR and