Doraemon: Nobita’s New Dinosaur

A curious and determined boy who stumbles upon a fossil egg and vows to uncover a real dinosaur. He cares deeply for Kyu and Myu, seeking to protect them while facing the consequences of time travel. Nobita enlists Doraemon's help and uses the Breeding Diorama Set to give the dinosaurs space, showing his growing sense of responsibility.

A time-traveling robotic cat who guides Nobita using gadgets and the Time Wrapping cloth. He helps the group understand the ethical limits of changing history and protects the dinosaurs from danger.

A small compsognathid who grows quickly and is initially unable to fly. Kyu's development mirrors the film's themes of adaptation and acceptance as he learns to glide.

Nobita's twin dinosaur who rapidly demonstrates flight and growth; Myu helps navigate the island and supports Nobita during the journey.

A Time Patrol agent who monitors the timeline, disguising himself as a white monkey. He initially resists interfering with history but ultimately decides not to obstruct when faced with Nobita’s bond with Kyu and Myu.

A mysterious figure who communicates with Jill and guides the action from the shadows. She helps reveal the island's true nature as a breeding diorama set and shapes the conflict over time.

Nobita's bold friend who pushes the group to seek clues about Kyu and Myu. He faces danger when captured by Jill along with Suneo, highlighting the stakes of their adventure.

Nobita's cunning companion who helps with information gathering and plans. He also ends up captured, underscoring the perils of their voyage.

Nobita's thoughtful friend who joins Doraemon and the others on the journey. She provides calm, rational support during chaotic moments.

Nobita's mother who expresses concern about the chaos caused by the dinosaurs and supports the decision to return them to their time, balancing family duty with adventurous wonders.