Ed's grandson who is forced to move to the attic when his grandfather takes his bedroom. He initiates a prank war against Ed, exchanges elaborate tricks, and later bonds with him during a fishing trip. After their secret war is exposed, they reconcile, though Peter vows a new war when Ed dates Diane.
Mother who prioritizes her father's well-being over her son's room.
Father who supports the family relocation and later enforces discipline.
Brother and sister navigating shared family changes and secrets.
Opposing teammates in the dodgeball match who develop mutual respect.
Opposing teammates in the dodgeball match and prank war rivals.
Childhood friends who share Peter's excitement and involvement in the war.
Explore the full interactive character relationship map of The War with Grandpa