Dubbed the donkey for the German version of Shrek (original dubbed by Eddie Murphy). Kronberg is the German voice of Eddie Murphy - this was the only case in the German version that a regular dubber of the actors was used for this film.
Is the German voice of Mr. Mackey in "South Park" and Mayor Quimby in "The Simpsons".
He is also the German voice of Sam Waterston in "Law & Order".
1974: Dubbing voice of Brian Avery in the German post-synchronized version of Woody Allen's 1973 'Sleeper' (Der Schläfer).
1976: Dubbing voice of Bernard Fresson in the German post-synchronized version of Roman Polanski's 'Le Locataire' (Der Mieter).
He was the German voice of Eddie Murphy, William Hurt, and Michael Winslow.
Also German dubbing voice of Jeff Bridges, Chevy Chase, Willem Dafoe, Charles Dance, Kelsey Grammer ("Cheers"), Robert Hays, Sam Neill and Pernell Roberts ("Bonanza").