- Lamberto Laudisi
- Lady Frola
- Mr. Ponza, her son-in-law
- Lady Ponza
- Councillor Agazzi
- Lady Amalia, his wife and sister of Lamberto Laudisi
- Dina, their daughter
- Lady Sirelli
- Mr. Sirelli
- The Prefect
- Commissioner Centuri
- Lady Cini
- Lady Nenni
- a waiter in the Agazzi's home
- other Ladies and Gentlemen
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