In the mirror universe, Marla McGivers was a Terran female in the service of the Imperial Starfleet of the Terran Empire during the 23rd century. In the early 2270s, she served aboard the ISS Enterprise. On the orders of his father Grand Admiral Matthew Decker, the Enterprise's first officer Commander Willard Decker instructed McGivers to attempt to seduce Admiral Spock in the hope that she would became his mistress and they would have a spy in his inner circle. While the first two "would-be Jezebels" Ensign Janice Rand and Lieutenant Carolyn Palamas vanished without a trace, McGivers fared better in that she was transferred to the ISS Hornet the next morning without explanation. (TOS - Mirror Universe novel: The Sorrows of Empire)