United Kingdom
Police drama. The sleuths of Scotland Yard try to solve a series of burglaries. - IMDb
| Falske nøgler |  Denmark |
| A Hosszú kéz |  Hungary |
| Justiça Final |  Brazil |
| Den långa armen |  Sweden |
| Der Lange Arm |  West Germany |
| Las llaves secretas |  Argentina |
| The Long Arm |  Australia |
| The Long Arm |  Ecuador |
| The Long Arm | United Kingdom |
| The Long Arm |  Singapore |
| Lovens lange arm |  Norway |
| La lunga mano |  Italy |
| O Segredo e a Chave |  Portugal |
| Pitkä käsi |  Finland |
| Politie zonder wapen (theatrical title) |  Netherlands |
| S.O.S. Scotland Yard |  Belgium |
| S.O.S. Scotland Yard |  Spain |
| S.O.S. Scotland Yard |  France |
| Scotland Yard - Schrecken der Unterwelt |  Austria |
| The Third Key |  USA |
| The Third Key |  Canada |
| To makry heri (transliterated title) |  Greece |
| Treci kljuc (literal title) |  Yugoslavia |
| Üçüncü anahtar |  Turkey |
| Длинная рука |  Soviet Union |
| 더 롱 암 |  South Korea |
 |
Michael Brooke | Tony Halliday |
 |
Frazer Hines [11] | Urchin |
|
Anthony Richmond | Child |
