 Stewart GrangerLaurence Rains | Laurence Rains |
 Rosamund JohnHilary Clarke | Hilary Clarke |
 Godfrey TearleSir Marshall Freyne | Sir Marshall Freyne |
 Sophie StewartChristine Morris | Christine Morris |
 Cathleen NesbittThe Matron | The Matron |
 Margaret VynerPamela Siddell | Pamela Siddell |
 John LaurieMr. Hervey | Mr. Hervey |
 Joan MaudeSister Catley | Sister Catley |
 Mignon O'DohertySister Tutor | Sister Tutor |
 Leslie DwyerSiddons | Siddons |
 Wylie WatsonDiabetic Patient | Diabetic Patient |
 Eric MicklewoodMr. Trevor | Mr. Trevor |
 Joyce GrenfellDr. Barrett | Dr. Barrett |
 Ernest ThesigerChairman | Chairman |
 Brefni O'RorkeMr. Lorrimer | Mr. Lorrimer |
 Patric CurwenMr. Lavery | Mr. Lavery |
 Jenny LairdGinger Watkins | Ginger Watkins |
 Grace ArnoldSister Grace Annie Sprock (uncredited) | Sister Grace Annie Sprock (uncredited) |
| GGordon BeggOld Carter (uncredited) | Old Carter (uncredited) |
| VValentine DunnTheatre Sister (uncredited) | Theatre Sister (uncredited) |
| JJohn HowardJimmy (uncredited) | Jimmy (uncredited) |
 Megs JenkinsNurse (uncredited) | Nurse (uncredited) |
| DDavid KeirMr. Purvis (uncredited) | Mr. Purvis (uncredited) |
 Aubrey MallalieuRev. J. Ashton (uncredited) | Rev. J. Ashton (uncredited) |
 Jack MayElderly Patient (uncredited) | Elderly Patient (uncredited) |
| PPaul MertonGeorge (uncredited) | George (uncredited) |
 Janette Scott(uncredited) | (uncredited) |
| BBen WilliamsEngineer Testing Machine (uncredited) | Engineer Testing Machine (uncredited) |
 Joan YoungSister Sewerby (uncredited) | Sister Sewerby (uncredited) |
