Horst Kempe is a German actor and voice actor, born in 1930. His career was primarily based in the former East Germany, where he was active as a stage actor in cities such as Stendal, Senftenberg, and Lutherstadt Wittenberg. He also appeared in front of the camera for a small number of productions by the German Film Corporation (DEFA) and German Television (DFF). In addition to his on-screen work, he was a prolific speaker in radio plays for Rundfunk der DDR, contributing to numerous productions from the late 1940s through the 1980s.

However, the most extensive part of his professional life was his work as a dubbing artist, lending his voice to actors in approximately 300 films and television series. His dubbing career spanned several decades, with notable activity from the 1960s through the 1990s. In this capacity, he became a familiar voice to German audiences, providing the German-language voice for a wide array of international productions. Some of his film dubbing roles include providing a voice for the character Sleepy in the 1994 German dubbing of the Disney classic Snow White and the Seven Dwarfs, and dubbing actors such as Peter Boyle in films like The Lake of the Woods and Royce, Gilbert R. Hill as Inspector Todd in Beverly Hills Cop 3, and Ken Jenkins in Mut zur Wahrheit. He also voiced characters in numerous other films, including The Shawshank Redemption, Ace Ventura: Pet Detective, and Mars Attacks!.

His work was not limited to Western productions; a significant portion of his dubbing credits are for films from Eastern Bloc countries, such as Czechoslovakia, the Soviet Union, and Romania, which were commonly dubbed for release in the German Democratic Republic. This included roles in films like The Scout and the animated feature The Secret of the Third Planet. One notable example of his work in a broader international context, which connects to the specific mention of the series Sekai Meisaku Dōwa: Mori wa Ikiteiru, is his role in the 1980 film Anja und die vier Jahreszeiten. In this production, he provided the German voice for the character of the old soldier, played by actor Masato Yamanouchi. This film is part of the broader world of international co-productions and dubbing that defined much of his career. Following German reunification, he continued to work as a voice actor in the 1990s, demonstrating the ongoing demand for his skills in a unified German media landscape. His career is a testament to the extensive and often unseen work of voice actors who bring international cinema to local audiences.