Melissa (AI)
From Halopedia, the Halo wiki
Melissa (voiced by Kristen Rutherford) is an artificial intelligence construct created by using Yasmine Zaman's brain. Yasmine had been in the Spartan-II training program, but "washed out" at fourteen. They used her brain to create Melissa, the A.I. of the ONI stealth ship Apocalypso.
Melissa was infected by a program that the Covenant created to attach itself to the AI that received the transmission it was buried in. When the Deep-Space Artifact created a Slipspace explosion on return to Earth, she was blown apart, one part being transmitted to Earth of the present, and the other was thrown back in time to the Earth of the early 21st century.
She was finally put back together after she helped disarm the artifact in Boston. She had just about gone rampant when the field that had separated her two halves dissolved and she regained her sanity.
Though technically a rogue, she continued to help her friends reach safety before the Covenant attack, which was brought upon them by the artifact's Slipspace ripple that was initiated upon it's disarming.
Melissa had several nicknames. She was called The Operator by her crew on the Apocalypso and was called "Durga" by her friends on Earth in 2552 after she was blown apart. The part that was thrown back in time called itself The Queen and the Sleeping Princess. The Sleeping Princess was the part of Melissa that still retained memories of Yasmine's life.
Trivia
In Star Trek Deep Space Nine there was an A.I. also named Melissa, in the Bashir 62 holoprogram. In '1962', Vic Fontaine had a table reserved at the Dunes Hotel for Melissa and Ginger, where they were going to see Shecky Greene perform. When Melissa and Ginger met Odo, they compared him to Victor Borge. (DS9: "His Way")
