Scenarist, stage director. He began his career as a country actor, then he became a journalist in Budapest at Tolnai Világlapja (The World Papers of Tolnai) and Színházi Élet (Theater Life). Since 1908 he is the director of the Hungarian Theater, since 1913 leading director, since 1920 art director. At the end of 1922 he moved to Vienna, from here to Berlin, and worked as a scenarist. His name is known through his plays. In Budapest he wrote a series of silent production scripts as the dramaturgist pf the Corvin factory. He became an expert known in all Europe and a collegaue of G.W. Pabst. Of his fruitful, many sided work the most prominent pieces are Jeanne Ney szerelme, written after the novel of I. Ehrenburg, the global success Nyugati front and the adaptation of Koldusopera, made in cooperation with the author of the play, Brecht. His son is László Vajda Jr.(Ladislo Vajda) a known filmdirector.