Fred Francis Director George Chakiris Larry Curado Actor Janette Scott Irene Actor Alfred Lynch Thomas "Tom" Ernest Bennett Actor Jocelyn Lane Julie Matthews Actor Athene Seyler Aunt Phoebe Tonks Actor Bernard Braden Sgt. Sokolow Actor Malcolm Keen Harry Stoneham Actor Ambrosine Phillpotts Lady Smith-Adams Actor Jack MacGowran Night Porter Actor Robert Ayres Col. Robert Thompson Actor Edward Evans Mack Actor Harry Locke Ted Actor Jeremy Lloyd Bowler-hatted young man Actor Marianne Stone Grand Hotel day receptionist Actor Nina Parry Prudence Smith-Adams Actor Monja Danischewsky Producer Norman Priggen Executive Producer Norrie Paramor Original Music Desmond Dickinson Cinematographer Ronnie Taylor Cinematographer Peter Taylor Film Editing Barry Gray Casting Ted Marshall Art Director