USA
Jonathan Hart was a self-made millionaire--the CEO of Hart Industries, a global conglomerate. His gorgeous wife Jennifer was a freelance journalist. They were both amateur sleuths, and in every episode found themselves up to their eyeballs in murder, smuggling, theft and international espionage. They also managed to find time to snuggle together, as they loved each other very much. Max was their loyal, gravelly-voiced butler, cook & chauffeur, and Freeway their pet canine. - IMDb
| Casal 20 |  Brazil |
| Cuore e batticuore |  Italy |
| Detectivii Hart |  Romania |
| Domnul si doamna Hart | Romania |
| Hart & Hart |  Finland |
| Hart aber herzlich |  West Germany |
| Hart aber herzlich | West Germany |
| Hart i Hart |  Croatia |
| Hart i Hart |  Serbia |
| Los hart investigadores (dubbed version) |  Uruguay |
| Los hart investigadores |  Venezuela |
| Hart kai Hart (transliterated title) |  Greece |
| Hart to Hart |  Philippines |
| Hart to Hart |  Singapore |
| Hart to Hart | USA |
| Hart to Hart |  South Africa |
| Hart to Hart |  Australia |
| Hart to Hart |  Canada |
| Hart to Hart | Canada |
| Hart to Hart |  United Kingdom |
| Hart to Hart |  Ireland |
| Hart to Hart |  India |
| Hart to Hart |  South Korea |
| Hart to Hart |  New Zealand |
| Hart y Hart |  Spain |
| Hart y Hart |  Mexico |
| Harten 2 |  Netherlands |
| Państwo Hart |  Poland |
| Par i hjärter |  Sweden |
| Par i hjerter |  Denmark |
| Par i hjerter |  Norway |
| Pour l'amour du risque |  France |
| Χαρτ και Χαρτ | Greece |
| Супруги Харт |  Soviet Union |
| 探偵ハート&ハート |  Japan |
| 龍鳳雙探 |  Taiwan |
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Roxana Zal [12] | Riley (TV Episode: The Hartbreak Kid) (1981) |
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Rossie Harris [13] | Jess (TV Episode: The Harts Strike Out) (1982) |
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Billy Jayne [12] | Herbie Geller (TV Episode: Hart-Shaped Murder) (1981) |
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Johnny Timko [15] | Kid #1 (TV Episode: This Lady Is Murder) (1980) |
