Season 4, Episode 23 The Origin of Species

First Aired: November 27, 1998

During a first-contact mission, a doctor (Ron Rifkin) who altered his body so he could communicate with aliens mysteriously disappears. Paul: Ryan Reynolds. Hope: Kathleen DuBorg. Ben: William deVry. Heather: Tara Spencer-Nairn. Kirby: Kirby Morrow.

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