Nico Castel

Nico Castel (born Naftali Chaim Castel Kalinhoff; August 1, 1931 – May 31, 2015) was a comprimario tenor and language and diction coach, as well as a prolific translator of libretti and writer of books on singing diction. Although Castel performed throughout Europe, North America and South America, he was best known for his nearly 800 performances at The Metropolitan Opera, where he also served as staff diction coach for three decades.