Among the Maquis seen in this episode were Tabor, Chell, Ayala, Doyle, Jor, Yosa, an unnamed Vulcan female, and an unnamed Bolian female. In "Counterpoint" it's made clear that Tuvok and Vorik were the only Vulcans aboard so she must be a former member of the Equinox's crew.
Seven of Nine, and later Janeway, mention that the ship is currently 35,000 light years from Earth. As Voyager started its journey almost 70,000 light years from home, that would mean they've managed to travel nearly halfway back since the events of "Caretaker," having drastically accelerated their journey in various ways along the way (Kes's "gift," the slingshot array, Borg transwarp technology, quantum slipstream, etc.).
Derek McGrath and Jad Mager reprise their roles as Maquis-Starfleet officers Chell and Tabor. Chell was seen in season one's "Learning Curve," and Tabor was seen in season five's "Nothing Human."
In this episode, the name of Chakotay's ship, the Val Jean, is revealed. The name appears on the monitor that Teero uses to check on the Maquis' personnel files.
At the beginning of the episode, Tom and B'Elanna watch Revenge of the Creature (1955) in the cinema on the holodeck.