as Jet: Distinguished by her blue hair, Jet is a conspiracy theorist and outsider at Atlantis High. She soon becomes friends with Giles and Beanie. Victoria Spence as Antonia / Antony: As Giles observes, Antonia and Antony appear to inhabit the same body. Antonia is a girly-girl who always wears a bow in her hair, while Antony is a quintessential "angry young man". Antony leaves Sunset Cove in the sixth episode, while Antonia gets caught up helping Mr. Dorsey. Joanne Mildenhall as Dorothy: She is Giles' mother, who has just moved with Giles and Grandpa to Sunset Cove. She often disapproves of Giles, and doesn't realize at first that she doesn't remember aspects of her past, or her connection to the Vermonts. Richard Lambeth as Coach Shane: He is the narcissistic sports coach at Atlantis High. He sometimes mentors Josh. Recurring Miriama Smith as Vita: The bombshell school secretary of Atlantis High, she is annoyed by Violet, and desires Coach Shane. Bevin Linkhorn as Don: The odd custodian of Atlantis High, he often gets caught up in the happenings at the school. Jane Waddell as Mrs. Vermont: She is the constantly wig-wearing wife of the Commander, and Octavia's mother. She shares a secret past with the Commander and Dorothy. James Ordish as Inner Child: He is the manifestation of Giles' inner child, who gives Giles unsolicited advice. Brian Sergent as Mr. Quentin / Q: He is Octavia's mysterious boss at the Agency, and his true agenda is unrevealed. Martyn Sanderson as Grandpa: Grandpa Gordon is Giles' grandfather who moves to Sunset Cove with Giles and Dorothy. While sometimes cantankerous, Grandpa knows more than he is telling. Megan Alatini as Dr. Leggz: She is Sunset Cove's glamorous local therapist, whom Giles and other go see to work out their problems. Tom McCrory as Lew Siffer: Lew is seemingly the mastermind behind several businesses and organizations in Sunset Cove. He and Violet Profusion often work and scheme together. Sam Husson as Vortex: Vortex is an alien in the flying saucer that Mr. Dorsey is in contact with. Lyndee-Jane Rutherford as Nebula: Nebula is another alien in the flying saucer. Des Morgan as Xeron: Xeron is the third alien in the flying saucer. Brian Childs as Elvis: Elvis is often seen around Sunset Cove. Production Atlantis High was produced by Cloud 9 Screen Entertainment, a British-owned company based in New Zealand. Production on