During Davidson's time on the show her character was involved in storylines about prostitution, unemployment, drugs and the taking into care of her child, Annie, by social services.

[3] Davidson went on to act in First of the Summer Wine (1988); Bulman; Casualty (1990); The House of Eliott (1992); Maria's Child (1992); The Bill (1993); and 10 x 10: The Guinea Pig (1998).

She also appeared in various theatre productions; notably, she played the role of Columbia in the first West End revival of The Rocky Horror Show (1990).

[4][5] Despite retiring from acting, Davidson agreed to reprise her role of Mary Smith in EastEnders for a single episode in 2019,[6] and then for the funeral of Dot Branning (June Brown) in 2022.

[7] Davidson developed an interest in writing and worked as a TV sit-com writer, director and voiceover actress.