The opening scene features footage from the film Alien Nation (1988). In several shots, the more elaborate facial prosthetics worn by the actors playing the film version of the Newcomers can be clearly seen.
This is the first episode in which Cathy meets any of the regular characters other than Matt and George.
Referring to a Newcomer suspect, Matt says to George, "He probably KO'ed himself for an alibi. You guys can press a nerve and do that, can't you?...Or is that Star Trek (1966)?" Gary Graham, who played Matt, later played the Vulcan Ambassador Soval in Star Trek: Enterprise (2001).