Men in Black (The X-Files)

On The X-Files television show, the term Men in Black refers to a group of enforcers employed by the Syndicate to execute assassinations, cover-ups and other clandestine operations. It is clear that most, if not all, of them are former members of special operations units. Some, mostly shown in comedic episodes, parodied the traditional view of MIBs from UFO lore. Most had no known civilian identities, though there were some exceptions. They rarely speak.

The Men in Black are analogous to the alien bounty hunters employed by the Colonists. The Men in Black were, however, not as reliable as the bounty hunters for difficult tasks. They were sometimes used initially, but it often took the more capable Alien Bounty Hunters to complete these missions. However, the Syndicate would use the bounty hunters only when necessary because of an increased risk of exposure.

As of the series finale, it is assumed they have been phased out, as the "New Syndicate" (Super Soldiers) does not have as great a need to employ normal humans.