Wikipedia
Undercover Man is a 1942 American Western film directed by Lesley Selander and starring William Boyd. The film is a serial Western and part of the Hopalong Cassidy series. It is the 44th entry in a series of 66 films.
Undercover Man is a 1936 American Western film directed by Albert Ray and written by Andrew Bennison. The film stars Johnny Mack Brown, Suzanne Kaaren, Ted Adams, Frank Darien, Horace Murphy and Lloyd Ingraham. The film was released on September 24, 1936, by Republic Pictures.
Usage examples of "undercover man".
But that's what this undercover man said, and he's the one who went into the mountains with the posse today.
There's something else we have that indicated a few days ago that they could have put an undercover man in.
The activity has been down over the last few months, and with the risk that exists--I'm being straight with you, Harry--of an undercover man being picked off, and the hullabaloo when it hits the fan, those sort of operations have been scaled down.
They might've thought you were an undercover man for the Coast Guard or something, bang bang.
Volunteered my services to British Intelligence as an undercover man: offered to double-cross Andersen's crowd for fifty thousand, sterling.
In view of his office, he knew about the Londonderry incident that had blown Preston's cover as an Army undercover man.