* Stewart Granger as Dick Heldar
* Sophia Loren as Marie
* Clifton Webb as Mr. Meredith
* Anne Heywood as Bessie
* Ursula Jeans as Mrs. Meredith
* Bernard Lee as the Editor
* David Knight as Jack
* Philip Locke as the Manager
* Norman Bird as the Painter
This version of "The Light That Failed" was a British production.