Many a character on Apple TV+'s "Slow Horses" or Netflix's "Black Doves"

SPY

Think of someone who might carry a fake passport or use a code name, often working in the shadows to gather secrets for their government.

This clue points to "spy" by referencing two popular spy-themed TV shows. "Slow Horses" on Apple TV+ follows disgraced MI5 agents, while "Black Doves" on Netflix centers on espionage, making "spy" the obvious profession shared by many characters in both. The word "many" hints at a common role rather than a specific name.