Continuity mistake: Klink's name is still on his office door in one scene but suddenly changes to Privat with no one touching it. (00:18:40 - 00:19:15)
Continuity mistake: When Hogan and Klink are getting ready to take off, they are on a regular paved runway. In the wide shot of the plane, it's going down and taking off from a dirt runway.
Answer: Nimrod's actual identity was never revealed in the series. It was only known that he was a British intelligence agent. Nimrod was not Colonel Klink. Hogan had only implied it was him as a ruse to get Klink returned as camp commandant, not wanting him replaced by someone more competent who would impede the Heroes war activities. (As another contributor previously posted, the term "nimrod" is slang for a nerdy, doofus type of person, though it's unclear why that was his code name).
raywest ★