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