Michael Wiesner is a German voice actor and ADR director born on October 2, 1984, in Bad Belzig, Germany. He began his work in voice acting at the age of thirteen and has since lent his voice to thousands of productions. He received his acting training at the Berliner Schule für Schauspiel from 2008 to 2009 and took speech lessons from Heinz Werner. In addition to his voice work, Wiesner is also active as a musician, composer, and author.

In the realm of anime, Wiesner is known for providing the German voice for a variety of characters. One of his notable roles is Isumi Sakishima, the setter for Nohebi Academy, in the Haikyu!! Land VS. Air original video animation. His other prominent anime voice work includes Yzak Joule in Mobile Suit Gundam Seed, Chad in the Bakugan: Battle Planet series and its sequels, and Kyo Sandai in Beyblade Burst. He has also voiced characters such as Uosuke in Fairy Tail, Katsuki in Kokkoku, and Anai in ID-0. His voice can be heard in the German versions of feature films like Detective Conan: The Eleventh Striker, where he voices Ryusuke Higo, and Detective Conan: The Phantom of Baker Street, as Seiichiro Kikukawa.

Beyond anime, Wiesner's extensive voice acting career encompasses a wide range of live-action and animated productions. He is the German voice of Steve Smith in the later seasons of the animated series American Dad! and has voiced characters in popular films such as Champ in Goosebumps and Benny Stilton in Geronimo Stilton. His repertoire also includes roles in series like The Wire, where he voiced the character Snoop, and Victorious, as Sinjin Van Cleef.

In addition to his on-screen voice work, Michael Wiesner is frequently involved in the creative direction of German dubs. He has served as an ADR director on numerous anime series, including Bakugan Battle Planet, ID-0, and the second season of BEASTARS. He also writes dialogue books for German adaptations and has directed dubbing for various live-action films and television series.