Currently available on 2 streaming services.

Blackmail - watch online: streaming, buy or rent

Currently you are able to watch "Blackmail" streaming on Plex, JustWatchTV for free.

Cast

Anny Ondra
Alice White
Sara Allgood
Mrs. White
Charles Paton
Mr. White
John Longden
Detective Frank Webber
Donald Calthrop
Tracy
Cyril Ritchard
The Artist
Hannah Jones
The Landlady
Harvey Braban
The Chief Inspector
Ex-Det. Sergt. Bishop
The Detective Sergeant
Alfred Hitchcock
Man on Subway (uncredited)
Johnny Ashby
Boy (uncredited)
Joan Barry
Alice White (voice) (uncredited)
Johnny Butt
Sergeant (uncredited)
Phyllis Konstam
Gossiping Neighbour (uncredited)
Sam Livesey
The Chief Inspector (silent version) (uncredited)
Phyllis Monkman
Gossip Woman (uncredited)
Percy Parsons
Crook (uncredited)