She played that part from 1967 to 1968 and appeared in Dimensions in Time (1993) and Downtime (1995). She also appeared as herself in the mockumentary, Lust in Space. Her father Jack Watling appeared in Doctor Who as Professor Edward Travers in the serials The Abominable Snowmen and The Web of Fear, and Deborah remembered having a great deal of difficulty focusing when working opposite her father - frequently collapsing in a fit of the giggles. This was especially the case in the latter serial when he was in old-age makeup.
Notable television performances outside Doctor Who include Sally in the ITV film series H. G. Wells' Invisible Man (1958/59), Alice Liddel in a 1965 BBC Wednesday Play story on the girl who inspired Alice in Wonderland, as Sarah Richards in 'The World in Silence' an episode of the BBC Sci-Fi series Out of the Unknown (1966), as Lorna in 'Hello Young Lovers' an episode of the ITV sitcom Rising Damp (1978) and as Norma in the ITV film series Danger UXB (1979). She also appeared in the 1972 feature film That'll Be the Day.
In 2010, Watling published her autobiography, Daddy's Girl in which she discusses her upbringing and her Doctor Who experiences. Among the book's revelations is the fact she received her first kiss as a teenager from fellow young actor Michael Craze.
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