Barbie and the Diamond Castle

Two puppies adopted by Liana and Alexa, Sparkles and Lily accompany the girls on their journey and symbolize loyalty and companionship. They provide moments of warmth and aid the group’s morale as they travel toward the Diamond Castle.

A fearsome dragon who confronts the girls and their animal companions, acting as a primary threat on the quest. He serves Lydia’s schemes and creates peril that the trio must outsmart with courage and unity.

One of the Muses who turns evil in her bid to seize the Diamond Castle. She hypnotizes others with her flute and uses magic to try to overpower the protagonists, until she is thwarted by the girls’ teamwork and the Muses’ power.

A girl trapped inside a mirror who was once the apprentice of the three Muses. She teaches the girls a song that serves as the key to restoring the Diamond Castle and freeing her from captivity.

One of the two main friends who love music and work together to protect their future. She demonstrates leadership, compassion, and resolve as they navigate danger and seek the Diamond Castle.

Liana’s singing voice reveals the character’s musical talent and emotional depth, contributing to the group’s harmony and the ultimate restoration of the castle.

Liana’s friend who joins the quest but initially questions continuing the journey. She is captured after removing her necklace during a moment of conflict, and she later reconciles with Liana to reclaim their quest.

One of the twins who joins the protagonists on their journey, helping navigate challenges and contributing to the effort to reach the Diamond Castle.

Ian’s twin brother, who accompanies the group and becomes part of the musical partnership formed by the friends and their companions.

One of the three Muses in the backstory who existed before Lydia turned villain. Dori’s influence is felt through the story’s legendary music and the restoration of harmony.

A Muse associated with the Diamond Castle, whose role is part of the magical history that empowers Melody and the others to restore balance.

Barbie’s sister who appears at a pivotal moment of tension in the present-day frame, contributing to the story by showing growth and apologizing for past actions.

A minor character who appears in scenes involving travel and shelter, helping to connect the protagonists to their journey and the world around them.