Leo Genn as Mr. Eden

Alastair Sim as Inspector Cockrill

Trevor Howard as Dr. Barnes

Sally Gray as Nurse Freddi Linley

Rosamund John as Nurse Esther Sanson

Judy Campbell as Sister Marion Bates

Megs Jenkins as Nurse Woods

Ronald Adam as Dr. White

George Woodbridge as Detective Sgt. Hendricks

John Rae as Porter

Henry Edwards as Mr. Purdy

Moore Marriott as Joseph Higgins

Frank Ling as Rescue Worker

Wendy Thompson as Sister Carter

Hattie Jacques as