The War with Grandpa Cast and Crew

Main Cast: Robert De Niro

Main Cast: Oakes Fegley

Main Cast: Christopher Walken

Supporting Cast: Uma Thurman

Supporting Cast: Jane Seymour

Supporting Cast: Rob Riggle

Supporting Cast: Laura Marano

Supporting Cast: Cheech Marin

Supporting Cast: Colin Ford

Director: Tim Hill

Writer: Tom J. Astle

Writer: Matt Ember

Writer: Robert Kimmel Smith