Final answer:
In Elie Wiesel's 'Night', the most influential person is his father, Shlomo Wiesel, who is central to Elie's survival and experiences in the concentration camps during the Holocaust.
Step-by-step explanation:
The most influential person in Elie Wiesel's book Night is arguably his father, Shlomo Wiesel. Throughout the memoir, Elie's relationship with his father is central to his experience and survival in the concentration camps. Shlomo's presence provides Elie with physical and emotional support, but also represents a responsibility that weighs heavily upon Elie during their time in Auschwitz and Buchenwald. As they endure the horrors of the Holocaust together, their bond is tested and the dynamic of their relationship evolves, reflecting the brutal impact of the circumstances they are forced to face.