Gavin, Jean and Peter meet Danny the Dragon, an unintentional visitor from outer space. Danny and the children encounter many adventures before Danny finally manages to return to his own planet.
| Actor | Role |
|---|---|
 Sally ThomsettNot listed | Not listed |
| CChristopher CooperNot listed | Not listed |
 Jack WildNot listed | Not listed |
 Peter ButterworthNot listed | Not listed |
 Kenneth ConnorNot listed | Not listed |
 Frank ThorntonNot listed | Not listed |