Here's some news that could even make Sad Keanu happy: Keanu Reeves will have a voice role in Toy Story 4. Tim Allen revealed the surprise casting on Wednesday's episode of The Tonight Show Starring Jimmy Fallon. While the voice of Buzz Lightyear didn't divulge who Reeves would be playing, he said it was "a great part." Allen also pointed out that Reeves' character is only "that big," showing about an inch or two between his thumb and forefinger. Toy Story 4 hits theaters June 21, 2019.