Famous for her work in numerous Hammer Productions horror films of the late 1960s and early 1970s and for her role opposite Ava Gardner in the 1970 movie Tam-Lin, she is also known for her stage and television work.
She began her entertainment career as a model. She appeared in her debut film -- a horror movie titled Taste the Blood of Dracula -- in 1969.
Early in her career, she was the subject of a J. Edward Oliver comic strip titled "The Life and Habits of the Madeline Smith." Her small-screen credits include the short-lived ITV series Doctor at Large and the BBC2 show The End of the Pier Show; her theatrical roles include Felicity Rumpers in Habeas Corpus (in a London West End production with Alan Bennett) and Elma in Canaries Sometimes Sing (at the Cambridge Theatre Company).
Her marriage to fellow television actor David Buck resulted in a daughter named Emily and ended with Buck's 1989 death from cancer.
She appeared with actor Vincent Price in the 1973 horror film Theatre of Blood.