Keanu Reeves Returns to ‘Matrix’ After 16 Years Keanu Reeves is returning to his role as Neo in the Matrix 4. Carrie-Ann Moss will also be returning as Trinity. Keanu said that he has read the script and is excited about what is in store for his character. He admits that it is, very ambitious-as it should be! He plays John Wick and gets shot and beaten up at every turn, how ambitious could the Matrix be?