In this episode, actor Josh Clark guest stars as Starfleet Lt. Joseph Carey, and Martha Hackett as a Maquis, Seska.
[8] As Voyager starts its way back home from the Delta Quadrant, tensions between the Starfleet and the Maquis crewmembers begin to rise, and some brief hostilities are incurred.
Janeway orders the crew to take Voyager to a nearby planet to seek help for the trapped ship.
However, the result damages their communications systems; on returning to Voyager they find two versions of the ship, both appearing real to their sensors.
"Parallax" was evaluated by USA Today as an interesting episode of the franchise and this series, noting the performance by Kate Mulgrew as Captain Janeway.
[6] This concept was acknowledged by the 2016 Star Trek novella, Department of Temporal Investigations: Time Lock.