Season 7, Episodes 10 and 11: “Sein und Zeit”/“Closure”
Original Airdates: February 6 and February 11, 2000
Samantha Mulder has always been a concept. Never really a character, just a motivation, a young girl who disappeared and, through her disappearance, defined the lives of those she left behind. Mulder would not be Mulder if his sister had not disappeared, and thus, Samantha Mulder is important. But: not as a person. She has never had personhood, never had dimension. Never even really had consistent casting. She has been there when she was needed to serve the story, and now, she is done.
[I'm sure you're busy.]