Trained from childhood as a singer and tap-dancer, she performed in the 1950s at seaside resorts around England in summer season shows.
[citation needed] Ashton's first television break was taking the role of Fanny Cornforth opposite Oliver Reed in Ken Russell's Danté's Inferno (1967), a film for the Omnibus series on the life of Dante Gabriel Rossetti.
[citation needed] In 1970, Ashton's chirpy, blonde persona found her understudying Barbara Windsor in the Ned Sherrin-produced musical Sing a Rude Song, based on the life of music hall singer Marie Lloyd; she successfully took the lead role when Windsor was struck down with laryngitis.
[citation needed] Ashton played numerous TV roles; credits include: On the Buses (1971) - subsequently making appearances in two spin-off films; The Benny Hill Show (1972–80); Both Ends Meet (1972, with Dora Bryan); Don't Drink the Water (1975, an On the Buses spin-off); Yus, My Dear (1976, with Arthur Mullard), Rooms (1977); Only When I Laugh (1980, with James Bolam); The Gaffer (1981–83, with Bill Maynard), Tripper's Day (1984, with Leonard Rossiter) and The Beer Hunter Minder Episode 1980 (with Dennis Waterman, George Cole).
In Thick As Thieves (1974) she was cast as Annie, wife of a burglar (Bob Hoskins) who comes out of prison to find that his old friend (John Thaw) has moved in, On stage, she later appeared in Stepping Out, and was a regular performer at the Players' Theatre in London.