"Nico Castel, the Metropolitan's resident standard setter for linguistic flavor ..." Will Crutchfield The New York Times

While Nico has performed over 200 roles as one of the world's pre-eminent character tenors, he is particularly noted for his interpretations of:

• Guillot in "Manon"
• Shuisky in "Boris"
• Goro in "Madame Butterfly"
• The Magician in "The Consul"
• Haushofmeister in "Ariadne auf Naxos"
• Hank-Sendorf in "The Makropoulos Case"
• Spoletta in "Tosca"
• Incredibile in "Andrea Chénier"
• The four characters and Spalanzani in "Tales of Hoffmann"
• Benoit and Alcindoro in "La Boheme"
• Lucano in "L'incoronazione di Poppea"
• Monostatos in "Die Zauberflöte"
• Valzacchi in "Der Rosenkavalier"
• Mime in "Das Rhinegold" and "Seigfried"
• Pedrillo and Pasha Selim in "The Abduction from the Seraglio
• and  Basilio and Curzio in "The Marriage of Figaro"