мы не знаем, кто

we don't know who

→ мы
phrase Rare #41,180
we don't know who Introduces an indirect question about a person or people whose identity is unknown.
RU: Мы не знаем, кто это сделал.
EN: We don't know who did this.

И самое интересное, что мы не знаем, кто радуется.

And the most interesting thing is that we don't know who's happy.

— Анатомия падения (2023)

Мы не знаем, кто всех пригласил.

We don't know who invited everyone.

Мы не знаем, кто рассказчик.

We don’t know who the narrator is.

Мы не знаем, кто он.

We don't know who he is.

Будто мы не знаем, кто она такая.

As if we don't know who she is.

— Малена (2000)