Kieling was active in German cinema, and also appeared in a few English-language films, most notably Hitchcock's Torn Curtain (1966) as East German agent Gromek (killed by Paul Newman). He appeared in House of 1,000 Dolls (with Vincent Price) and played smuggler Granich in the 1971 heist comedy $ (with Warren Beatty and Goldie Hawn). As a German-language voice actor, Kieling dubbed Frank Sinatra in seven films, Torn Curtain co-star Paul Newman in severalfilms, Leslie Nielsen twice, and in one film apiece, Charlton Heston (in Planet of the Apes), Marlon Brando, James Coburn, and Danny Kaye.