After the obituaries of four identical men are e-mailed to Mulder, the agents are contacted by a shadowy CIA agent who tells them about a bounty hunter sent to wipe out the beginning of a colony of clones. Meanwhile Mulder is distracted by the sudden reappearance of his sister Samantha.
Quest roles:
Mitch Pileggi(Walter Skinner), Andrew Johnston(Medical Examiner), Tom Butler(CIA Agent Ambrose Chapel), James Leard(Sgt. Al Dixon), Peter Donat(William Mulder), Rebecca Toolan(Teena Mulder), Brian Thompson(Alien Bounty Hunter), Megan Leitch(Samantha Mulder), Ken Roberts(Clerk), Bonnie Hay(Night Nurse), David L. Gordon(FBI Agent), Oliver Becker(2nd Doctor), Dana Gladstone(Dr. Landon Prince / Gregor), Kim Restell(Newspaper Clerk), Linden Banks(Joseph Patnik), Richard Sargent(Captain), Tim Henry(Federal Marshall), Michael J Rogers(1st Crewman), Finn Michael(Guard (uncredited)), David Stuart(Seaman (uncredited))