Schenk began his career in East Germany, appearing in several films in the sixties and seventies. He is the standard German voice of Eugene Levy and Kelsey Grammer (from Frasier onward), and frequently dubs Stephen Fry, Jim Broadbent, Michael McKean, and Albert Brooks. He dubbed Steve Martin in The Pink Panther movies, Jeffrey Tambor in How the Grinch Stole Christmas, James Fox in Heart of Darkness, and Tony Shalhoub in 13 Ghosts.