Malcolm Reed's sister, one of the relatives Hoshi Sato contacts in her attempt to discover what the reserved armoury officer would like for his birthday dinner.
Madeline Reed appears in Silent Enemy. After Archer's call to the Reed parents yields nothing, Hoshi is given the task of finding out Malcolm's favourite food and works her way through the people who ought to know him best.
Madeline is friendly but no more use than her mother and father. She can only say that her brother always ate whatever was put in front of him and never expressed a preference, an answer that says a good deal about how closed a person he is even with his family.
Her call is one of several comic dead ends in the episode, which runs alongside the main story of an unidentified alien ship attacking Enterprise and Reed's work to bring the phase cannons into service.