Overview
Sabrina travels to Australia's Great Barrier Reef with her best friend 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 a local marine biologist determined to find the colony as his claim to fame. While Sabrina finds romance with 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.
| Actor | Age then | Age now | |
|---|---|---|---|
 | 23 | 49 | |
 | 26 | 52 | |
 | 30 | 56 | |
 | 22 | 48 | |
 | 39 | 65 | |
 | 39 | 65 | |
 | 34 | 60 | |
 | 20 | 45 | |
 | - | - | |
 | 19 | 45 |