Cio-Cio-San (Madame Butterfly) soprano
Suzuki, her maid mezzo-soprano
B. F. Pinkerton, Lieutenant in the United States Navy tenor
Sharpless, United States consul at Nagasaki baritone
Goro, a marriage broker tenor
Prince Yamadori baritone
The Bonze, Cio-Cio-San's uncle bass
Yakuside, Cio-Cio-San's uncle bass
The Imperial Commissioner bass
The Official Registrar bass
Cio-Cio-San's mother mezzo-soprano
The aunt soprano
The cousin soprano
Kate Pinkerton mezzo-soprano
Dolore ('Sorrow'), Cio-Cio-San's child silent
Cio-Cio-San's relations and friends and servants