After two seasons of black-and-white episodes, it was decided to switch to colour production. But after only two episodes were completed, McGoohan quit the series to devote his energies to The Prisoner (1967). These two episodes of the third season, Koroshi (1967) and Shinda Shima (1967) were edited together to form the movie Koroshi (1968).
It is often erroneously reported that episodes of the series were filmed in Portmerion, Wales, that McGoohan used as the setting for The Prisoner (1967). In truth, none of the 1964-66 "Danger Man" episodes was filmed there, however, several episodes of McGoohan's earlier Danger Man (1960) series were.
Patrick McGoohan was adamant that Drake live up to a higher moral standard than the likes of James Bond. As a result, the character rarely becomes involved with women (beyond mission requirements), and rarely kills anyone. In fact, he almost never carries a gun. The actor said: "I don't like violence, and you will notice that in 'Danger Man' John Drake always fences round violence. He is not an anti-law hero like Bond. I mean, take away from Bond his women and his expertise with a menu and there is not much left. Bond is a not-so-good guy. Drake really is a good guy. And that's why - if you can imagine it - Drake would always beat Bond in a fight."
The nationality of John Drake is a matter of some debate. In the original Danger Man (1960) series, he was portrayed as an American. On this show, he appeared to be British. Patrick McGoohan was born in the U.S., but based in Europe, and in one episode of this show, John Drake says he is Irish. McGoohan's next series, The Prisoner (1967) is considered by many to be a spin-off of Danger Man (1960), and many believe that show's main character, Number 6, is John Drake. Indeed at least one character from Danger Man (1960) (Potter) appears in an episode of The Prisoner (1967). However, McGoohan has since 1967 been adamant that Number 6 is not John Drake.