Lieutenant Palmer was a 23rd century Starfleet operations division officer who served aboard the USS Enterprise under Captain James T. Kirk. Palmer served as the relief communications officer in the absence of Lieutenant Uhura.

In 2267, Palmer reported receiving a garbled distress call from the USS Constellation. When it was discovered that the Constellation had been attacked, she announced red alert, calling for the crew to man their battle stations. During the later battle with the planet killer, she made damage and casualty reports to Spock. Following the defeat of the planet killer, she was instructed by Kirk to contact main engineering and tell Mr. Scott to expedite repairs to the warp drive.