| Country | Date | |
|---|---|---|
| USA | 1 May 1935 | (premiere) |
| USA | 9 May 1935 | (New York City, New York) |
| Argentina | 10 July 1935 | |
| Mexico | 30 July 1935 | |
| Italy | August 1935 | (Venice Film Festival) |
| UK | October 1935 | |
| Sweden | 7 October 1935 | |
| Netherlands | 8 November 1935 | |
| Austria | 1936 | |
| Denmark | 20 January 1936 | |
| Portugal | 27 January 1936 | |
| Finland | 15 March 1936 | |
| West Germany | 23 June 1950 | |
| Austria | 21 July 1950 | (re-release) |
| Finland | 1 December 1950 | (re-release) |
| West Germany | 21 September 1962 | (TV premiere) |
| Argentina | 7 November 2002 | (Clásicos de estreno) |
| Der Verräter | Austria / Germany |
| El delator | Argentina / Spain |
| A besúgó | Hungary |
| Angiveren | Norway (imdb display title) |
| Delator | Mexico (imdb display title) |
| Dertig zilverlingen | Netherlands (reissue title) |
| Forræder | Denmark |
| Il traditore | Italy |
| Ilmiantaja | Finland |
| Informer | Austria |
| Le mouchard | France |
| O Delator | Brazil (imdb display title) |
| O Denunciante | Portugal |
| O katadotis | Greece (transliterated ISO-LATIN-1 title) |
| Potepieniec | Poland |
| Potkazivac | Yugoslavia (literal title) (Serbian title) |
| Verraad | Netherlands (informal literal title) |
| Plot summary | Box office and business | User reviews |
| Ratings | Awards | News articles |
| External reviews | Main details |