- Mother-in-law of David Tennant.
- Sandra Dickinson modeled for master effects creator Ray Harryhausen, her head and face providing the basic cast used to develop Medusa's severed head in 'Clash of the Titans'(1981).
- Mother, with Peter Davison, of actress Georgia Tennant.
- In a bizarre twist, plays Tricia McMillan (the alter ego of Trillian) in the new "Quandary Phase" episodes of "The Hitch Hiker's Guide To The Galaxy" BBC4 radio series, from book 4 of the late Douglas Adams' "Hitch Hiker's Trilogy", "So Long, and Thanks For All The Fish". Dickinson played Trillian/Tricia in The Hitchhiker's Guide to the Galaxy (1981), but Susan Sheridan, who originated the role on radio, continues to play Trillian in the new episodes. (May 2005)
- Her grandson, Tyler Peter Moffett, was born in May 2002.
- Graduated 1966 from Walter Johnson Senior High School, Bethesda, MD
- Trained at the Central School of Speach and Drama.
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