who they are
I know who they are.
Tell me who they are.
Los Khoo, los Young, quiero decir, ¿quién no sabe quiénes son?
The Khoos, the Youngs, I mean, who doesn't know who they are?
— Crazy Rich Asians (2018)
Primero quiero que me digas quiénes son ellos.
First, I want you to tell me who they are.
— Impacto (1981)
Deben saber quiénes son y lo que hacen.
They must know who they are and what they do.
I know who you all are.