K. N. Singh and Helen.
12 films with both credited.
| Year | Film | K. N. Singh | Helen | Language |
|---|---|---|---|---|
| 1958 | Chalti Ka Naam Gaadi | Actor | Actor | Hindi |
| 1958 | Howrah Bridge | Actor | Actor | Hindi |
| 1958 | Kabhi Andhera Kabhi Ujala | Actor | Actor | Hindi |
| 1959 | Keechak Vadha | Actor | Actor | Hindi |
| 1960 | Chhabili | Actor | Actor | Hindi |
| 1960 | Nache Nagin Baje Been | Actor | Actor | Hindi |
| 1961 | Reshmi Rumal | Actor | Actor | Hindi |
| 1962 | Hong Kong | Actor | Actor | Hindi |
| 1962 | Isi Ka Naam Duniya Hai | Actor | Actor | Hindi |
| 1963 | Shikari | Actor | Actor | Hindi |
| 1964 | Woh Kaun Thi? | Actor | Actor | Hindi |
| 1968 | Ek Phool Ek Bhool | Actor | Actor | Hindi |