Michael Iwannek is a German voice actor, radio play actor, and singer, recognized for his extensive work in dubbing foreign films, television series, and animation for the German market. He was born on December 31, 1963, in Berlin. Iwannek began vocal training as a child, around the age of seven or eight, and participated in talent competitions that led to appearances at the State Opera and on television. He gained his first experience in dubbing during an internship in production management and soon began taking on voice roles, with his singing background making him a frequent choice for musical parts in films and series. He secured his first major dubbing and singing role after a casting in 1984 or 1985.

While widely known as the German dubbing voice for actors such as Zach Galifianakis and Matthew Perry, Iwannek has also built a substantial portfolio in anime and animated productions. In the cyberpunk series Cyberpunk: Edgerunners, he provided the German voice for the character Pilar. He is also the German voice of Genta Kojima in the Detective Conan franchise, having voiced the character in the anime series as well as in several films, including Detective Conan: The Scarlet Bullet, Case Closed: The Fist of Blue Sapphire, and Lupin III vs. Detective Conan The Movie.

Iwannek's other notable anime roles include Briareos in the OVA series Appleseed XIII and its compilation films Appleseed XIII: Tartaros & Ouranos. He voiced the character Daiju Mononobe across multiple installments of the Eden of the East franchise, including the series itself and the films Air Communication, The King of Eden, and Paradise Lost. His voice can also be heard as Oeufcoque Penteano in Mardock Scramble: The First Compression and as Gouba in the film Welcome to the SPACE SHOW.

In addition to Japanese anime, Iwannek has contributed his voice to animated projects from other countries. He voiced the Joker in the German dubs of several DC animated films, including Batman Ninja, Batman: Assault on Arkham, and Batman vs. Teenage Mutant Ninja Turtles. According to the information available in the search results, the role of Jogo in Jujutsu Kaisen, which was mentioned in the prompt, could not be verified.