誰々
だ
れ
だ
れ
Meanings
1
so-and-so; someone (unspecified)
Used to refer to an unspecified person or people, similar to 'so-and-so' or 'someone or other'. Often used when the speaker does not know or does not want to specify the name.
I heard that so-and-so is coming, but I forgot the name.
There was a call from a Mr. So-and-so.
2
who?; which people?
Used as a question word asking for the identity of multiple people, similar to 'who (plural)?' or 'which people?'. Less common than the singular 誰.
Who (all) is coming to the party?
Please tell me which people agreed.