In December 2019, it was announced Groff would join the cast for "The Matrix 4", the fourth installment of The Matrix franchise, alongside Keanu Reeves, Carrie-Anne Moss, and Yahya Abdul-Mateen II. It will be released on HBO Max on December 22, 2021. In November 2020, "Deadline" announced Groff would star as Brian in "Molly and the Moon", a musical film alongside "Frozen" co-star Kristen Bell. In December 2020, it was announced Groff will be joining the cast of "Invincible" as Rick Sheridan, an Amazon Prime adult superhero animated series based on the Invincible comics created by Robert Kirkman, with the first episodes expected to be released on March 26, 2021. In March 2021, Netflix announced Groff would star in the live-action/animation hybrid series "Lost Ollie" directed by Peter Ramsey based on William Joyce and Brandon Oldenburg’s book "Ollie’s Odyssey." Groff will voice the title role of Ollie, a lost toy searching for the boy who lost him.