After a break from performing, she emerged in the mid-Forties as a sultry beauty who starred in a series of moody dramas and potent thrillers.

She trained as a child at Fay Compton's School of Dramatic Art, and began acting on stage at the age of 10.

Gray made her professional stage debut at the age of twelve in All God's Chillun at the Globe Theatre in London, playing an African boy.

[3] The same year she appeared in the West End musical Lady Behave which had been written by her co-star Stanley Lupino.

Gray then made Silent Dust (1948) and Edward Dmytryk's film noir piece Obsession (1949), in which she plays Robert Newton's faithless wife.

[3] RKO executives, impressed with Gray, authorised producer William Sistrom to offer her a long-term contract[4] if she would move to the United States.

Gray married the 4th Baron Oranmore and Browne, an Anglo-Irish peer, on 1 December 1951,[4] and thereafter lived for several years at Castle Macgarrett, near Claremorris, in County Mayo in the west of Ireland.

The Dowager Lady Oranmore and Browne died on 24 September 2006, at 91 years of age,[5] in London, England.