Spy
To dream of a spy represents an aspect of your personality that is secretly sabotaging other people. Pretending you care about someone while having ulterior motives. You or someone else that is trying to stop others plans by acting as their friend. It may also reflect an attempt to study other people so that you can stop them or make them less successful at something.
Example: A single father dreamed of Russian spies. In real life he feared his son would leave home so he tried to look for things wrong with his son's new home so that he wouldn't leave. The spies reflected the father's attempt to secretly sabotage his son's plans with any problems he could find.