What are the characters on x files?

Answer 1

Lots of them. The most important, up until seasons 8 and 9, are Special Agents Fox Mulder and Dana Scully, played by David Duchovny and Gillian Anderson.

Later on in the series, there are two new agents named John Doggett (Robert Patrick) and Monica Reyes (Annabeth Gish).

Walter Skinner and the Lone Gunmen (Melvin Frohike, John Beyers, and Ringo Langly) are also on the show quite often.

As for villains, there are Cigarette Smoking Man, Alex Krycek, the Alien Bounty Hunter, etc.