Diana was born in South Africa, and has been working as an actor since she was fifteen. After early film work she trained at the Central School. Many years of theatre work followed including two years with the National Theatre and numerous productions in the West End, the Lyric Hammersmith and with the Orange Tree Theatre. Her Film work includes "Love/Loss," "The Gathering," "Firelight," and "Paper Mask". TV credits include roles in both "Inspector Morse," and "Lewis," "Holby," "Eastenders," "Doctors," "Wire In The Blood," "Touch of Frost," and three series' of "It Takes A Worried Man."