Charles O'Neill was a student of Sidney Dietsch in New York. He made his debut in 1958 in Fort Worth as Radames after
winning in 1957 the Metropolitan Opera New York Auditions of the Air.
His career developed mainly in the US, West Germany and Switzerland. He sang in Baltimore, Fort Worth, Cincinnati, Santa Fé and San
Antonio as well as in Hamburg, Stuttgart, Deutsche Oper Berlin, Essen, Köln, Frankfurt a. M., Darmstadt,
Kassel, Hannover, Stuttgart, Düsseldorf-Duisburg, Basel and Zürich.
He was engaged for several years as a member of the Theater am Gärtnerplatz.
He made guest appearances in Toronto, Vancouver and Belgrade.
His repertory was composed of:
Florestan, José, Don Carlo, Alvaro, Manrico, Otello, Turiddu, Canio, Samson, German, Cavaradossi,
Rodolfo, Calaf, Andrea Chénier, Oedipus Rex, Bacchus and Siegmund.
Reference: Kutsch & Riemens