The headdress that Anthony De Longis wore for the role of Culluh was mostly made out of sponges and dog chew toys.
The leola root that was collected on the planet was made from a painted ginger root with some additions to make it look more alien.
Torres' line, claiming she doesn't exaggerate, is an allusion to Scotty's habit of exaggeration, which led to his becoming known as a miracle worker.
The exterior scenes of the teaser were filmed at Bronson Caves in Bronson Canyon.
This is the final appearance of Lieutenant Joseph Carey in the "present time" until Friendship One (2001) set in 2378. He appears in Relativity (1999) and Fury (2000) but only in flashbacks.