Melissa Bergman

Melissa Bergman (AKA MB) is the main antagonist of Metroid: Other M. She is a human android who was created with Mother Brain's intellectual data, and consequently developed Mother Brain's persona.

History
Melissa was created for the purpose of controlling Space Pirate special forces. Her infrastructure was modeled after Mother Brain so she could control the special forces telepathically, as well as develop a bond with Metroids, similar to the bond Samus Aran had with the baby Metroid that she took from SR388.

However, she soon developed emotions as well as Mother Brain's malevolent demeanor. This led to arguments with the other scientists on the BOTTLE SHIP. Madeline and the others attempted to reprogram her, without success. After that, Melissa went rampant, and set the special forces on all the researchers.

Samus Aran first sees MB watching her from a window overlooking the Experiment Floor in the Cryosphere, and she runs away to the Materials Storehouse after realizing she had been seen. Samus gives chase, and tries to convince her that she is here to rescue her, much to MB's denial. They are separated after Samus is attacked by a soldier using the RB176 Ferrocrusher.