Also Known As:
- Alfred Hitchcock's The Ring
- El ring
- A szorító
- Circusboxaren
- Der Weltmeister
- Eines starken Mannes Liebe
- El cuadrilátero
- Kehä
- Le masque de cuir
- O Ring
- Ratkaisu nyrkkeilykehässä
- Ringen Denmark
- Vinci per me!
- Alfred Hitchcock
- Alfred Hitchcock
- Alma Reville
- Eliot Stannard
- Carl Brisson ... 'One-Round' Jack Sander
- Lillian Hall-Davis ... The Girl
- Ian Hunter ... Bob Corby
- Forrester Harvey ... The Promoter
- Harry Terry ... The Showman
- Gordon Harker ... Jack's Trainer
- Charles Farrell ... Second
- Clare Greet ... Fortune Teller
- Tom Helmore ...
- Minnie Rayner ... Boxing Contestant's Wife
- Brandy Walker ... Spectator
- Billy Wells ... Boxer