Emerald (2025 TV series)

Lore & Background

Emerald is a mermaid who works at a restaurant owned by Hamish, living with her dad and his girlfriend Pearl above the establishment. Her life is upended when her mother Coral marries King Auster, the Sea King, making Emerald a princess and giving her a stepsister, Delphina. Emerald must navigate living between two homes and being part of a blended family, with help from Theodore the Sea Unicorn and Shelly the Sea Turtle, who provide laughs and support.

Reader's Guide

Emerald (2025 TV series) represents a notable expansion of the Isadora Moon universe, focusing on themes of blended families and adaptation to new roles. The series was commissioned by Sky Kids in the United Kingdom on July 9, 2024, with a planned 2025 air date. Production is handled by British independent company Kelebek Media, with sales managed by Madgic Distribution. The show features voice actors including Iris Wardill as Emerald, Eve Ridley as Delphina, and Rasmus Hardiker in dual roles as Theodore and Hamish. Its significance lies in its family-oriented fantasy narrative, targeting young audiences with relatable themes of change and friendship.

Did You Know?

• Emerald is a spin-off of the British children's series Isadora Moon.
• Rasmus Hardiker voices both Theodore the Sea Unicorn and Hamish the restaurant owner.
• A guest role, Mer Kid, was awarded to a Sky VIP competition winner and voiced by Ayla Khan.

Premise & Story World

Emerald's life undergoes a dramatic transformation when her mother, Coral, marries the Sea King, King Auster. Previously a regular mermaid who worked at a restaurant alongside her father Hamish and his girlfriend Pearl, Emerald suddenly finds herself inheriting a princess title and a stepsister named Delphina. The series follows her as she navigates this double life, splitting her time between two very different homes while adjusting to the responsibilities and expectations of royalty. The blended family dynamic sits at the heart of the narrative, with Emerald learning to balance her old identity as a restaurant worker and occasional musician with her new role as a princess. To ease this transition, she is supported by two loyal companions: Theodore, a sea unicorn, and Shelly, a sea turtle, who provide both practical help and comic relief throughout her adventures.

Cast & Character Ensemble

The voice cast brings a colorful underwater world to life. Iris Wardill lends her voice to the titular Emerald, a mermaid who juggles restaurant work, music, and royal duties. Eve Ridley voices Delphina, Emerald's stepsister, while Rasmus Hardiker takes on a dual role, voicing both Theodore the sea unicorn and Hamish, the restaurant owner. Allison Arnopp provides the voice of Coral, Emerald's mother who ascends to become sea queen, and Faith Omole voices Pearl, Hamish's girlfriend. Shelly the sea turtle rounds out the core group. Among supporting characters, Rudy, an occasionally grumpy angel fish, adds personality to the ensemble. A guest role also features Mer Kid, voiced by Ayla Khan, described as a Sky VIP competition winner. The casting choices create a warm, diverse family dynamic that anchors the show's tone.

Production & Development

Emerald is a British children's television series developed by Harriet Munchester, created as a spin-off of the existing property Isadora Moon. The project received its official commission from Sky Kids in the United Kingdom on July 9, 2024, with the broadcaster simultaneously confirming a 2025 air date. Production fell to Kelebek Media, a British independent production company, as announced by the sales company Madgic Distribution on August 28, 2025. The show's placement within the Isadora Moon franchise suggests a shared creative universe, allowing the broader audience of that series to encounter Emerald's underwater world. The partnership between Sky Kids as the commissioning broadcaster, Kelebek Media as the production house, and Madgic Distribution as the sales agent reflects a typical British children's television pipeline, with the series positioned for both domestic and international distribution following its 2025 launch.

Thematic Core & Audience Appeal

At its center, Emerald explores the emotional landscape of a child adapting to major life changes. The premise of inheriting a new family structure, gaining a stepsister, a new father figure in King Auster, and a royal title, mirrors real-world experiences of blended families and shifting identities. The show frames these transitions not as losses but as exciting, if sometimes overwhelming, new chapters. Emerald's dual existence between her restaurant life and her palace life gives young viewers a relatable lens through which to understand duality and belonging. The comedic partnership between Theodore and Shelly ensures that the emotional weight of adjustment is balanced with humor and lightheartedness. As a spin-off of Isadora Moon, the series extends that franchise's focus on friendship, self-discovery, and navigating difference, while adding the specific texture of family change and the joy of finding one's place in a new world.

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