Thomasina is the pet cat of Mary McDhui, the daughter of Scottish veterinarian Andrew McDhui. When Thomasina falls ill, McDhui declares that the pet should be put down. But when Mary and her father try to bury the cat, Lori MacGregor (Susan Hampshire), who is said to be a witch, shows up and attempts to steal it.
Unfortunately the movie The Three Lives of Thomasina is not yet available on Disney Plus.
| Production | Walt Disney | Producer |
| Writing | Robert Westerby | Screenplay |
| Production | Hugh Attwooll | Producer |
| Directing | Don Chaffey | Director |
| Writing | Paul Gallico | Novel |
| Sound | Paul J. Smith | Original Music Composer |
| Editing | Gordon Stone | Editor |
| Camera | Paul Beeson | Director of Photography |
| Art | Michael Stringer | Art Direction |
| Costume & Make-Up | Margaret Furse | Costume Design |
| Camera | Alan Hall | Camera Operator |
