Louis C.K. starred in The Secret Life of Pets.
Louis C.K. . During an extended Louie hiatus , C.K. created and starred in his web series Horace and Pete in 2016 , and voiced the lead role in the animated film The Secret Life of Pets the same year . The Secret Life of Pets . The film stars Louis C.K. , Eric Stonestreet , Kevin Hart , Steve Coogan in a dual role , Ellie Kemper , Bobby Moynihan , Lake Bell , Dana Carvey , Hannibal Buress , Jenny Slate , and Albert Brooks .