Sandra Dickinson

Sandra Dickinson (born 20 October 1948 ) is an American actress who voiced Maggie in the audio serial The Ghosts of N-Space.

Personal life
She is the mother of Georgia Moffett, the former wife of Peter Davison, the mother-in-law of David Tennant and grandmother of Ty Tennant and Olive Tennant.

Career
She is known for her role as Trillian in the TV series adaptation of The Hitchhiker's Guide to the Galaxy.