Jean-Émile Diogène Marcoux was a French operatic bass-baritone, known professionally as Vanni Marcoux. He was particularly associated with the French and Italian repertories. His huge repertoire included an estimated 240 roles and he won renown as one of the most memorable singing-actors of the 20th century.
From Wikipedia (https://en.wikipedia.org/wiki/Vanni_Marcoux) under Creative Commons Attribution CC-BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0/legalcode)