Laurie Murdoch (Lawrence) later played Quisling in Patient Zero (2001), another episode involving a plague which wiped out billions of people worldwide.
Jay Brazeau, Joy Coghill, Jason Gaffney, Lane Gates, Biski Gugushe, Eric Keenleyside, Megan Leitch, and Laurie Murdoch all appeared in Stargate SG-1 (1997).