A storm-damaged power station's haywire collector dish threatens to destroy the Mediterranean town Lady Penelope and Parker are holidaying in with a blast of solar energy.
| Actor | Role |
|---|---|
 David GrahamParker / Brains / Party Goer (voice) | Parker / Brains / Party Goer (voice) |
 Peter DyneleyJeff Tracy / Professor Lungren (voice) | Jeff Tracy / Professor Lungren (voice) |
 Shane RimmerScott Tracy (voice) | Scott Tracy (voice) |
 Jeremy WilkinVirgil Tracy / Senor Faccini (voice) | Virgil Tracy / Senor Faccini (voice) |
 Matt ZimmermanAlan Tracy (voice) | Alan Tracy (voice) |
 Sylvia AndersonLady Penelope Creighton-Ward / Bingo Winner (voice) | Lady Penelope Creighton-Ward / Bingo Winner (voice) |
 Christine FinnGrandma Tracy (voice) | Grandma Tracy (voice) |
 Charles TingwellMitchell / Bruno (voice) (uncredited) | Mitchell / Bruno (voice) (uncredited) |