Palmer

Relief communications officer, USS Enterprise

A lieutenant who takes the communications station on Kirk's Enterprise when Uhura is absent, played by Elizabeth Rogers in The Doomsday Machine and The Way to Eden.

Lieutenant Palmer is a relief communications officer aboard the Enterprise. She was played by Elizabeth Rogers and appears in two episodes of the original series, one in the second season and one in the third.
In The Doomsday Machine she is at communications while Commodore Decker takes command of the ship and throws it against the planet killer, struggling to keep contact with Kirk aboard the wrecked USS Constellation.
She returns in The Way to Eden, handling communications while Dr Sevrin's followers disrupt the ship. Rogers also supplied the unseen voice of the Companion in Metamorphosis.