Duke Caboom is a supporting character in Toy Story 4, voiced by Keanu Reeves. He is a Canadian stuntman toy from the 1970s, known for his flashy motorcycle jumps and dramatic confidence. Beneath his bravado, Duke struggles with feelings of inadequacy because he believes he failed to live up to the promises made in his commercial. He helps Woody and the other toys during their journey, providing comic relief, heart, and a key stunt sequence that highlights his courage and growth.