Stephen Collins (Reverend Eric Camden), Catherine Hicks (Annie Camden) and Michael Dorn (Mr. Johnson) all appeared in "Star Trek" films: Collins played Commander Willard Decker in Star Trek: The Motion Picture (1979), Hicks played Dr. Gillian Taylor in Star Trek IV: The Voyage Home (1986) and Dorn played Governor Worf in Star Trek VI: The Undiscovered Country (1991) and his grandson Lt. Commander Worf in Star Trek: Generations (1994), Star Trek: First Contact (1996), Star Trek: Insurrection (1998) and Star Trek: Nemesis (2002).