Cast
Reginald Beckwith
Lumdsen
James Hayter
Mr Memory
Duncan Lamont
Sidney James
Perce Baker
Jill Haworth
Schoolgirl on Train (uncredited)
Taina Elg
Miss Fisher
Faith Brook
Mandy Robinson ("Nannie")
Leslie Dwyer
Milkman
Barbara Steele
Extra
Sam Kydd
Train restaurant staff (uncredited)
Michael Brennan
Detective on Train (uncredited)
Michael Goodliffe
Brown
Joan Hickson
Miss Dobson
Brian Oulton
Marianne Stone
Hospital Administrator (uncredited)
Carol White
Schoolgirl in Assembly Hall (uncredited)
Bruce Seton
Policeman on Train (uncredited)
Brenda De Banzie
Nellie Lumsden
Jameson Clark
MacDougal
Andrew Cruickshank
Sheriff
Peter Vaughan
2nd Police Constable on Train (uncredited)
Kenneth More
Richard Hannay
Barry Jones
Professor Arthur Logan