A young, colorful dragon from the fictional region of Blueland who is rescued by Elmer and has the ability to fly, aiding their escape from Wild Island.

A small canary and Elmer's former pet, who now lives on Feather Island and acts as a messenger among the island's bird community.

A royal canary on Feather Island burdened by a family secret, whose interaction with Elmer and Flute significantly influences the storyline.

Elmer's affectionate mother, depicted at the story's end welcoming him back home in Nevergreen City, Popsicornia.

Elmer's father, shown in illustrations welcoming Elmer home and receiving a present, adding to the happy ending.

An old tabby cat formerly living outside, now part of the Elevator family, who originally informed Elmer about the dragon.