Melantha Jhirl is one of the main characters of the Syfy television series Nightflyers and is portrayed by Jodie Turner-Smith. Melantha is the first officer of the Nightflyer mission. She is a genetically enhanced cadet from the Genetic Space Program. Hand-picked by Karl D'Branin to be his first officer, Melantha is fiercely loyal to her commander. However, she comes to the attention of Roy Eris, which sparks competition for her loyalties.
She is described in the book as "a head taller than anyone on board, a large-framed, large-breasted, long-legged, strong, muscles moving fluidly beneath shiny coal-black skin."