Sabrina Down Under

Sabrina travels to Australia's Great Barrier Reef with Gwen, a fellow witch from England, for a week-long vacation where they try to help protect a hidden mermaid colony whose habitat is threatened by ocean pollution, and by local marine biologist Dr. Julian Martin, who is determined to find the colony as his claim to fame. While Sabrina finds a friendship with Barnaby, a "merman" from the mermaid colony, Salem the cat finds a possible romance with another witch-turned-into-a-cat named Hilary, but finds Sabrina's problems interfering with his plans. In order to prevent Julian from launching a search for the mermaid colony, she casts a spell to create a storm to keep him in port, which succeeds except that a lightning bolt knocks Sabrina unconscious, and when she comes to she learns she has lost her powers, at least temporarily.

• Melissa Joan Hart as Sabrina Spellman, a teenage witch, visiting Australia to discover the Great Barrier Reef, and meet marine biologist Dr. Julian Martin. She discovers merman Barnaby, who she gives legs when she sees that he is ill.
• Tara Charendoff as Gwen, a British witch whose spells never go the way she plans. She and Sabrina go on holiday to Australia together. Gwen was introduced in Sabrina Goes to Rome.
• Scott Michaelson as Barnaby, a merman who turns into a human for 48 hours, thanks to Sabrina's magic.
• Lindsay Sloane as Fin, Barnaby's mermaid sister who initially despises humans.
• Nick Bakay as the voice of Salem Saberhagen, a 500-year-old witch, sentenced to spend 100 years as a cat as punishment for attempting to take over the world. While on his yearly vacation, he is surprised to find Sabrina there. He quickly falls for Hillary who is also a cat, however the two break up when her sentence is up and she is turned back into a woman. While taking a picture he discovered who had been polluting the ocean.
• Peter O'Brien as Dr. Julian Martin, a marine biologist who spends his time protecting the reef.
• Rebecca Gibney as Hilary Hexton, a witch imprisoned in the body of a cat. She begins to date Salem, however when she is turned back into a witch she says goodbye to him.
• Conrad Coleby as Jerome, a boy whom Gwen gets attracted to. He is cute, sweet and funny, but he is often hard to understand due to his use of Australian slang.
• Ben Lawson has a small appearance as an employee of the resort.

As part of the Sabrina the Teenage Witch book collection, a book titled Sabrina the Teenage Witch: Sabrina Down Under is available. The book is written by Ellen Titlebaum. It is unnumbered, as is the first film's book adaptation. The other books in the series are numbered in reading order.

• Lindsay Sloane, who played Valerie on the TV show, plays the mermaid Fin in this movie. The fact that the two characters resemble each other greatly is not mentioned (or apparently noticed) by Sabrina.

• The song "Beautiful Stranger" by Madonna is heard at the opening credits.
• Melissa Joan Hart's cover version of "Octopus's Garden" by The Beatles can be heard during the underwater scene.

10,000 leagues by K ser during the first dive scene.

• A cover version of "Livin' la Vida Loca" by Ricky Martin can be heard during the montage sequence.

On February 7, 2017, the film was released on DVD with changes to the musical score due to copyright issues.

• Sabrina Down Under at IMDb
• Sabrina Down Under at AllMovie