Jean-Baptiste Poquelin, mostly known by his stage name Molière, wrote The Doctor in Spite of Himself in the 17th century. It's the story of Sganarelle, who is mistaken for a reputable doctor, even though, as an alcoholic woodcutter, he has no idea what a doctor should know. In turn, he helps a girl who has "lost" her voice as well as her lover.
(Tags : The Doctor in Spite of Himself (Dramatised) Molière Audiobook, Molière Audio CD )