performance as Klink, Klemperer received six Emmy Award nominations for best supporting actor, winning successive awards in 1968 and 1969. Klemperer made a cameo appearance in character as Klink in the Batman episode "It's How You Play the Game" and as Officer Bolix in the Lost in Space episode "All That Glitters" in 1966. He played a bumbling East German official in the 1968 American comedy film The Wicked Dreams of Paula Schultz, directed by George Marshall and starring Elke Sommer and several of his costars from Hogan's Heroes, including Bob Crane and John Banner. Klemperer later starred in Wake Me When the War Is Over in 1969, playing the role of a German major, Erich Mueller, alongside Eva Gabor. He also played a villain in an episode of Voyage to the Bottom of the Sea titled "The Blizzard Makers". After Hogan's Heroes ended in 1971, Klemperer continued his career in stage and film roles and guest-starring roles on television. In 1987, he portrayed Herr Schultz in the Broadway revival of Cabaret. The role earned Klemperer a Best Featured Actor Tony Award nomination. Later career After his father's death in 1973, Klemperer expanded his acting career with musical roles in opera and Broadway musicals. He earned a Tony Award nomination for his performance in Cabaret in its 1987 Broadway revival. A member of the board of directors of the New York Chamber Symphony, Klemperer served as a narrator with many other American symphony orchestras including the Cincinnati Chamber Orchestra. He also made occasional guest appearances on television dramas, and took part in a few studio recordings, notably a version of Arnold Schoenberg's Gurre-Lieder with the Boston Symphony and Seiji Ozawa, in 1979. From 1979 to 1982, he appeared as Bassa Selim in 18 performances of Mozart's Singspiel Die Entführung aus dem Serail at the Metropolitan Opera in New York. In 1981, he appeared, to critical and audience raves, as Prince Orlofsky in Seattle Opera's production of Die Fledermaus. In 1990, he narrated the children's story "Gerald McBoing Boing" (music by Gail Kubik) for a CD of classical music for children. In 1992, he made a guest appearance in an episode of Law & Order, "Starstruck", as the father of an attempted murder suspect. In 1993, Klemperer reprised the role of Klink in an episode of The Simpsons as Homer's guardian angel and spirit guide in the episode "The Last Temptation