When Nathan Stark inputs his password to hand control of GD over to Allison Blake, his password is 2554766 which, using the letters on a phone keypad spells "Allison".
Allison's Password is "8675309" from the song "867-5309/Jenny" by Tommy Tutone.
Both Matt Frewer (Jim Taggart), who isn't in this episode but is in numerous others, and Barclay Hope (Gen. Mansfield) both starred in PSI Factor: Chronicles of the Paranormal (1996).