Fireball XL5:
Prisoner On The Lost Planet
Season 1, Episode 19
Prisoner on the lost planet
Original Transmission 3 March 1963
Written by Anthony Marriott
Directed by Bill Harris
Production Order
Flight To Danger
Broadcast Order
Flight To Danger
The Forbidden Planet

Prisoner On The Lost Planet is the 20th produced episode and the 19th Broadcast episode of the series Fireball XL5


The crew of XL5 land on a misty planet in response to a distress call. Steve Zodiac, on his jetmobile, finds a beautiful woman Aphros, who tells him she has been exiled to the planet and wants to go to Earth. When Steve tells her this isn't possible, she drugs him and threaten to active the volcano that is nearby. Professor Matic fires an interceptor at the cave where Steve is held prisoner, thus enabling him to escape and take Aphros prisoner. Holding her in the Space jail, they return home.

Regular Voice CastEdit

Guest Voice CastEdit


  • Misty Planet
  • Amazonia

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