A young yeoman newly assigned to Captain Christopher Pike aboard the USS Enterprise in 2254, who is taken by the Talosians as a prospective mate for him during the events of The Cage.
Yeoman J.M. Colt appears in the first pilot, The Cage, played by Laurel Goodwin, and in the footage reused for The Menagerie. She replaces Pike's previous yeoman, who died on Rigel VII, and the captain admits he is not used to having a woman on the bridge.
During the attempt to rescue Pike from Talos IV, the Talosians intercept the transporter beam and bring only Colt and Number One down to his cell, offering them as alternatives to Vina. The Keeper notes Colt's youth and her strong, unspoken feelings for her captain, to her embarrassment.
Colt returns to the ship with the others once the Talosians conclude that humans are unsuited to captivity. Back on the bridge she cannot resist asking Pike who would have been his choice.