In the opening scene, Daniel said the dome looks pretty advanced. Bloedel Conservatory and Aviary in Vancouver was built for the Canadian Centennial in 1967. It has been a filming location for Battlestar Galactica (2004), Fringe (2008), Andromeda (2000), Supergirl (2015) and others.
Robert Murray Duncan, the actor who plays Daniel Jackson's father in this episode, also plays the Goa'uld Seth in Season 3.
Dwight Schultz plays The Keeper, the master of the virtual reality environment. He previously played Lt. Barclay on Star Trek: The Next Generation (1987), a character addicted to the virtual reality of the holodeck.
The building used as the house in East Germany in 1982 seen in Jack's memories, Foxglove Farm located at 6471 224 Street in the township of Langley, British Columbia, was later used as the Kane home in Icon (2004). It was also used as the Kress home in The Outer Limits (1995) pilot Sandkings (1995), which starred Beau Bridges.
Gillian Barber (Resident #1) later played the recurring character Ambassador / First Minister Dreylock of Kelowna in Seasons Six and Seven.