The X-Files Season 4 Characters & Cast — No Spoilers
Every character in The X-Files season 4 with photos and the actors who play them, including David Duchovny, Gillian Anderson, Mitch Pileggi — spoiler-free, nothing from later seasons.
- Fox Mulder — played by David Duchovny
- Dana Scully — played by Gillian Anderson
- Walter Skinner — played by Mitch Pileggi
- Cigarette Smoking Man — played by William B. Davis
- Marita Covarrubias — played by Laurie Holden
- Agent Pendrell — played by Brendan Beiser
- Teena Mulder — played by Rebecca Toolan
- Samantha Mulder / Young Samantha Mulder / Young Samantha Mulder Clone (uncredited) — played by Vanessa Morley
- Gray Haired Man — played by Morris Panych
- Senator Albert Sorenson — played by Fritz Weaver
- Mike Millar — played by Joe Spano
- Prisoner — played by Stefan Arngrim
- Sgt. Louis Frisch — played by Tom O'Brien
- Max Fenig — played by Scott Bellis
- Scott Garrett — played by Greg Michaels
- Larold Rebhun — played by Jerry Schram
- Vassily Peskow (uncredited) / Vassily Peskow — played by Jan Rubeš
- Sergeant Armando Gonzales — played by Rick Dobran
- Young Bill Mulder — played by Dean Aylesworth
- Dark Man — played by David Palffy
All seasons of The X-Files: full spoiler-free character guide