Sandra Dickinson as Trillian in the BBC tv version

Sandra Dickinson who played : Trillian has a degree in mathematics and a doctorate in astrophysics, so when she met Zaphod at a party in Islington, she jumped at the chance to see the galaxy... it was either that or back to the dole queue on Monday.

Easily the most sensible one of the group, it is often quite clear that she knows more about what is going on than either Ford or Zaphod despite their Galactic experience. She alone seems to have some amount of control over Zaphod, as well as constantly doing her best to be nice to Marvin, even after everyone else has given up.

Gallery for british actress Sandra Dickinson

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