Dynevor trained at Oldham Repertory Theatre and then the
Mountview Academy of Theatre Arts. In 1985 she appeared in an episode of the television series
Juliet Bravo, playing Wendy Cunningham, a troubled schoolgirl who becomes a heroin addict. She has made a career out of playing
Sally Webster (née Seddon), a bad girl turned tame, on the
ITV soap opera
Coronation Street. She made her début on the serial in January 1986 and has been with the programme ever since. Dynevor was nominated for Best TV soap Personality at the 2011 Television and Radio Industries Club Awards (TRIC Awards). She also, along with three co-stars, accepted the award for Best Storyline at the 2011 British Soap Awards which revolved around the Dobbs-Websters love triangle (this award is credited to producer,
Phil Collinson). At the 2015 British Soap awards, she was nominated for Best On-Screen Partnership (with
Joe Duttine), and won the award for Best Comedy Performance. In 2016, Dynevor and
Joe Duttine won the award for Best On-Screen Partnership at the British Soap Awards. In October 2021, it was announced that Dynevor would be competing in the
fourteenth series of
Dancing on Ice. She was paired with
Matt Evers and they were the sixth couple to be eliminated in week 7. ==Personal life==