Winifred McCall is a First Lieutenant on board of the Alexander.
Captain McCall is a practical, brave, hardworking, and levelheaded woman who enjoys farming. She is good at organizing people with little resources, and performs well under pressure.
During the first book, Winifred McCall, a UTA marine in Illuminae, is assisted by Kady Grant in escaping those afflicted by the Phobos Virus on the Alexander. She and the others are in turn rescued by Syra Boll on the Hypatia.
After Syra Boll's death at the hands of Ben Garver in Obsidio, McCall reclaims the ship with the assistance of Kady Grant, Ezra Mason, Nik Malikov, Hanna Donnelly, and Ella Malikova, commandeering them until they get back to Kerenza IV, then fighting alongside the other survivors to take over the Churchill. After all of the action is over, she retires to the Ptolemy system.
Winifred McCall served as a first lieutenant with the United Terran Authority marines, with ten years of combat on her belt, for all of her adult life until Obsidio and her retirement.