However, before Keanu Reeves was officially signed, the creative team had no idea that it was even Reeves they wanted in the role. He was just one of many voice recordings in a stack when the process was getting started. However, once his recording was played, director Josh Cooley said the actor jumped right out at them, noting,
Article source: https://www.cinemablend.com/news/2475454/yes-canadian-pixar-animators-were-obsessed-with-working-on-keanu-reeves-duke-caboom