In 1943, aged 21, Kerr made her West End début as Ellie Dunn in a revival of at the , stealing attention from stalwarts such as and.
In 1965, the producers of offered her a fee comparable to that paid to the rest of the cast combined, but she turned it down in favour of appearing in an aborted stage version of.
She played a nun in 1957 opposite her long-time friend , directed by.
Both flopped, as did 1959 with.