This supplement to the Deutsches Theater-Lexikon amplifies and extends Volumes I-IV (A-T, appeared between 1953 and 1998). Articles have been re-edited with an emphasis on the 20th century, and personalities of German-language theater who were not previously included have been newly added. The lexicon contains bio-bibliographic information about playwrights, composers, theatrical directors, producers, actors, singers, set and costume designers.