William Kamkwamba
main character; creates the windmill
Trywell Kamkwamba
William's father; becomes a farmer after a long life of trading, starts to not be able to provide for William and the family doesn't make fun of William
Agnes Kankwamba
William's mother
Geoffrey
William's cousin and close friend; he has to drop out of school to work in the field after his father died; gets sick during the famine but has to search for ganyu to support his family
Gilbert
William's close friend; son of Chief Wimbe, attends secondary school with William, provides the PVC pipes and purchases materials such as the dynamo and screws, nuts, and bolts
Mister Banda
Owner of a convenience store
Uncle John
Geoffrey's father, died of tuberculosis
Annie
William's older sister
Mister Phiri
One of the hired workers on William's father's plot that attributes his strength to mangolomera
Shabani
Mister Phiri's nephew who boasted about being a sing'anga and possessing mangolomera; he ripped William off
Uncle Socrates
William's uncle who lost his job and moved back to William's village after Uncle John died; brings Khamba with him
Khamba
William's pet dog and hunting partner
Charity
William's older cousin by a few years