R. Wilson Munroe is played by Nick Tate who was a long history in science fiction, starring as Australian Astronaut Alan Carter in Space: 1999, and featuring in episodes of Star Trek.
Long before appearing on Farscape, Nicholas Hammond was the first live action version of The Amazing Spider-Man in the 1978 TV series.
Gigi Edgley's lipstick scene was the last on the show. She was told about the cancellation before lunch and decided to make this the best possible Chiana scene of the series.
A second scene was filmed featuring this mysterious Mr. X (in reality Executive Producer David Kemper) in which he simply was seen shaking his head in disbelief.
Professor Edmund Johnston is played by Brian Henson, who was present on set for the filming of the final scenes of the series and was persuaded to take part.
The script for "A Constellation of Doubt" is an incredible 116 pages long. Most episodes average around 58 pages for 42 minutes of television.
"A Constellation of Doubt" was filmed over a long period. The scenes in Crichton's cell and in the corridors were shot on July 23, 2002, the ones on Command on August 16, while the segments with Bobby at Jack Crichton's house were filmed on June 24.
The final scene began on 'Take 33,' in recognition of Anthony Simcoe's often stated comment that "Take 2 is for dickheads, but Take 33: Brando!"