In English, John Doe or Jane Doe is understood not to be an actual name of a person, but to be some kind of a placeholder name or mean an average citizen. There are many variants of this name in English and similar names exists in other languages. This Finnish Wikipedia page lists similar names in various languages — for some reason there is no similar list in the linked English Wikipedia page.
Latin is missing from the list. Is there a Latin equivalent of the name, either masculine or feminine? When and how was it used? I am not looking for suggestions for forming such a name in Latin, but for examples from the literature. I prefer my Latin classical, but I would be happy to receive examples from any era.