Fiona Cashmore is a young 9-year-old girl who loves plants and animals. She is a close friend of Ravi's. She often tries to be helpful but is overly enthusiastic which often results in the annoyance of those around her. Her voice was provided by Barbara Flynn.
- Plum Crazy
- Photo Finish
- Snake Chase
- The Silver Key
- Like Josh, Ravi and Fairport, Fiona appears in all 12 episodes of the series.
- For unknown reasons, her mother never appears in the series.