London. A mysterious serial killer brutally murders young blond women by stalking them in the night fog. One foggy, sinister night, a young man who claims his name is Jonathan Drew arrives at the guest house run by the Bunting family and rents a room.
| Actor | Role |
|---|---|
 Ivor NovelloThe Lodger Jonathan Drew | The Lodger Jonathan Drew |
 Marie AultMrs. Bunting the Landlady | Mrs. Bunting the Landlady |
| AArthur ChesneyMr. Bunting | Mr. Bunting |
 June TrippDaisy Bunting | Daisy Bunting |
 Malcolm KeenJoe Chandler | Joe Chandler |
 Reginald GardinerDancer at Ball (uncredited) | Dancer at Ball (uncredited) |
 Eve GrayShowgirl Victim (uncredited) | Showgirl Victim (uncredited) |
 Alfred HitchcockMan in Newspaper Office (uncredited) | Man in Newspaper Office (uncredited) |
 Alma RevilleWoman Listening to Wireless (uncredited) | Woman Listening to Wireless (uncredited) |