Dickinson was born in Washington, D.C., and grew up in Maryland. Her father, Harold F. Searles, was a psychoanalyst, and her mother, Sylvia, was a nurse. In 1969, Dickinson met her first husband, Hugh Dickinson, moving to his native United Kingdom with him the following year. They were married for five years. She married the British actor Peter Davison on 26 December 1978, and they were divorced in 1994. Together they composed and performed the theme tune to the 1980s children's programme Button Moon. They have a daughter, Georgia Tennant, born December 25, 1984, who is also an actress. Dickinson married her third husband, a second British actor and singer, Mark Osmond, on 16 August 2009. The wedding was filmed for Four Weddings, a reality TV show where four couples compete to have theirs voted the best wedding; hers came third. Osmond is the lead singer of the band Bigger Than Mary, who played at the wedding. Her grandson gave her away. The wedding took place in Shepperton, where the couple lived at the time. Dickinson became a British citizen the same year. With her husband, she runs the Shepperton-based stage school Close Up Theatre School.
Film and TV credits
Her film and TV roles include:
A brief role as a waitress in the 1973 sci-fi film The Final Programme.
Emily in A Man for Emily in The Tomorrow People. Her future husband Peter Davison played her on-screen brother.
Sandra Dickinson said in an interview in The Making of The Hitch Hiker's Guide to the Galaxy that when she heard that she had been suggested for the role of Trillian, she thought it completely mad – Sandra Dickinson was blonde and fair-skinned, and in the Hitch Hiker book, Trillian is described as dark and looking "slightly Arabic". However, during the screen test, Douglas Adams was sufficiently impressed with her acting skills that when Dickinson suggested wryly, "I've got to get my Union Jack lenses in", Douglas Adams asked her to use her natural voice and accent. Dickinson later returned to the "Hitchhiker's" universe to play Tricia MacMillan in the fourth and fifth radio series produced by Above the Title for BBC Radio 4.
A parallel universe version of Trillian in the Quintessential Phase of the Hitch-Hiker's Guide radio series.
Zelda in Cover, a 1981 drama series from Thames Television, set in a recruitment and testing agency for the spy service.
Cameo appearance in the film Superman III as the wife of a man who puts a grapefruit in her face after seeing the size of a bill from Bloomingdale's. A year later, Dickinson made an appearance as a party guest in Supergirl.
The role of Nancy Day in The Lonely Lady, adapted from the Harold Robbins novel.
A cameo as celebrity actress Marilyn Gale in the 1986 Hercule Poirot TV film Dead Man's Folly.
A guest appearance on one episode of the CITV pre-school series Rainbow.
Sally, a neurotic vampire who prefers bloodbanks to actual victims, in a 1991 episode of HBO's Tales from the Crypt series.
Tina in the 1990s sitcom 2point4 children.
Jemima Puddle-Duck in the American dubbed version of The World of Peter Rabbit and Friends.
Maggie in the 1996 Doctor Who BBC radio serial The Ghosts of N-Space.
The voice of Bitchin' Betty, the truck's computer, in the 1996 comedy film Space Truckers.
The US Voice Trumpets, in the PBS version of Teletubbies.
Debbie Hall, a tourist who arrives in Holby City Hospital with her husband, who has been stabbed by a mugger, in a 2001 episode of the BBC1 drama Casualty.
Fay, the demonic owner of a paintball park, in the 2007 horror comedy filmStagKnight.
Lady Gloria Gransford in a 2009 episode of the BBC drama New Tricks.
Miss Swanson in the 2009 British slasher film Tormented.
Mother in the 2009 British fantasy film Malice in Wonderland.
Suzy in Uncle, the 2014 TV series starring Nick Helm.
The three evil bounty hunters Chico, Zaxos and Flargle in the British-Canadian Disney XD animated series Counterfeit Cat.
She also revoiced some of the female voice trumpets in Teletubbies for the American market.
Other acting roles
Dickinson and then husband Peter Davison appeared together in Doctor Who producer John Nathan-Turner's production of the holidaypantomimeCinderella in 1983. They also appeared in a stage production of The Owl and the Pussycat, and Barefoot in the Park, a London stage production from 1984, as a pair of American newlyweds adjusting to life in their new high-rise apartment. In 1997, she played Eunice Hubbel in Peter Hall's production of A Streetcar Named Desire at Theatre Royal, Haymarket. She played Queen Camilla in a Carlisle pantomime production of Snow White & the Seven Dwarves in 2007, and the following year played the Fairy Godmother at the Towngate Theatre, Basildon's production of Cinderella, reprising the role in the 2009 Harlow Playhouse theatre production of Cinderella alongside her now-husband, Mark Osmond. From 18 December 2010 to 9 January 2011, Dickinson played the evil Queen Maleficent in the pantomime Snow White and the Seven Dwarfs at the Corn Exchange in Exeter. From 13 December 2014 to 4 January 2015, Dickinson played Queen Whoppa in the pantomime Jack and the Beanstalk at Exeter Corn Exchange. She played Debbie in White Van Man series 1, episode 5 "Honest", first broadcast on 12 April 2011. The series stars her daughter Georgia Tennant. She provides many voices including those of Granny Jojo, Mrs. Jotunheim, Felicity Parham, and the cupcake woman from The Amazing World of Gumball and is the voice of Grandma Tracey in the 2015 Thunderbirds revival. In 2014, she understudied Angela Lansbury in the West End production of Blithe Spirit – co-starring Simon Jones, with whom she worked with on The Hitchhiker's Guide to the Galaxy – but she never got to perform Madame Arcati, other than in the public understudy run, as Lansbury did not miss a single performance.
