O'Neill's line "I'm just a cynical old Air Force guy with a closet full of National Geographics" was originally written as "a closet full of Playboys" but was changed before filming.
O'Neill refers to Maybourne as G. Gordon, this is a reference to G. Gordon Liddy who was convicted of conspiracy, burglary, and illegal wire-tapping for his part in the Watergate scandal. Liddy also made an appearance on MacGyver (1985) with Richard Dean Anderson in Collision Course (1988).
Samantha Carter is seen driving a silver Volvo P1800. Roger Moore, as Simon Templar, famously drove a white version of this car in The Saint (1962).