This episode includes two past DS9 actors; J. Patrick McCormack previously played Admiral Bennet in "Doctor Bashir, I Presume", while Randy Oglesby had appeared as Ah-Kel and Ro-Kel in "Vortex" and as Silaran Prin in "The Darkness and the Light".
Gustav Mahler's Symphony No. 1, 2nd movement is featured at several points. However, to some degree, the 1st movement of that same symphony is heard in nearly every Star Trek production. Alexander Courage borrowed the opening sequence of Mahler's Symphony No. 1, 1st movement and used it, with slight alterations, as the opening sequence for the Star Trek: The Original Series (1966) theme song. Mahler himself had actually borrowed the same sequence from Johannes Brahms who had, in turn, borrowed it from Beethoven.
Along with Jeffrey Combs, J.G. Hertzler and Thomas Kopache, Randy Oglesby is one of only four actors to play seven different characters on "Star Trek". He played a scholar in Star Trek: The Next Generation (1987), Ah-Kel, Ro-Kel and Silarin Prin in Star Trek: Deep Space Nine (1993), Kir in Star Trek: Voyager (1995) and Trena'L and Degra in Star Trek: Enterprise (2001).
While Crewman Jurot is never shown on screen in the television series the character does make an appearance in the very first Star Trek first person shooter, Star Trek Voyager: Elite Force (2000), she is a member of the Hazard Team, a special commando unit created and trained by Lt. Commander Tuvok to deal with the unique threats encountered by Voyager in the Delta Quadrant. She is also featured in the sequel Star Trek: Elite Force II (2003).