Linda Hayden made her fim debut at the age of 15 in the controversial Baby Love (1968), playing a schoolgirl who seduces her adoptive family. She next featured in two horror films; playing Alice Hargood in Hammer's Taste the Blood of Dracula, (1970), followed by a memorable performance as the demonically possessed Angel Blake in Blood on Satan's Claw (1971), made by Tigon. In 1972, she played a pregnant teenage hitchhiker in Something to Hide, driving Peter Finch to murder and madness.
Linda appeared opposite Robin Askwith, her then-boyfriend, in the popular sex comedies Confessions of a Window Cleaner (1974), Confessions from a Holiday Camp (1977) and, with Fiona Richmond, in Let's Get Laid (1978); as well as the obscure cult movie Queen Kong (1976). She also shared the stage with Askwith, in Richard Harris and Leslie Darbon's farce Who Goes Bare. Hayden and Richmond had previously appeared together in the thriller Exposé (1976), which was known as Trauma in the USA and House on Straw Hill in Australia.
Following a brief role in The Boys from Brazil (1978), Linda concentrated on stage and television work, such as the thriller Underground at Toronto's Royal Alexandra Theatre and London's Prince of Wales Theatre in 1983, as well as a 1997 episode of The Bill.
Now semi-retired, she featured as Mrs Brown in Martin Kemp's 2009 remake of Exposé, with Jane March playing Linda — Hayden's role in the 1976 original.