Melanie Reegan was a human Starfleet officer who served as a medical officer in the 2160s aboard the starship Poseidon. (Star Trek: Poseidon - The Birth of the Federation) From an early age, Melaine, known to those around her as Mel, knew that she wanted to be a doctor like her father. She grew up immersed in the world of medicine. As a child, once the surgery had closed for the evening, she would go into her father's study and watch him work on case notes.