Wallaby 1 was Pontypandy's Mountain Rescue helicopter from Series 5-10 it was piloted by Tom Thomas.
- Wallaby 1 is based on a Robinson R22.
- In Series 5, it had a large tank which could store water, a double harness and (in Let it Snow) Dilys' groceries.
- In Series 11, Mandy Flood gave her model of Wallaby 1 to the young prince during his royal visit to Pontypandy with his parents.
- In the exterior shot of Wallaby 1 in Series 5 just before it takes off, the blue beacon on top of the rotors does not flash. It should be noted that most if not all search and rescue helicopters in real life do not have any sort of emergency lighting as it is not necessary.