Arthur Klemt was born in Klagenfurt in 1967. Before beginning his acting career, he performed all over Europe as a fire-eater, unicyclist, stilt walker, tightrope walker and acrobat. As an actor, he has had engagements at the Staatstheater Stuttgart, the Stadttheater Klagenfurt, the Theater der Jugend in Vienna, the Konzert Theater Bern, the Kammerspiele, Volkstheater, and Residenztheater in Munich. In addition, he acted both for film and television. He became a permanent member of the Burgtheater ensemble in the 2019/20 season.