이 누군데요

Who is this person? / Who is that?

→ 이
phrase Uncommon #14,268
Who is this person? / Who is that? 이 means “this,” 누구 means “who,” and -인데요 forms a polite question. The phrase often asks who someone is, with the person identified by the preceding context.
KO: 그분이 누군데요?
EN: Who is that person?

저쪽이 누군데요?

Who is that over there?

— 더 플랫폼 (2019)

조던이 누군데요?

Who is Jordan?

— 사랑해 줘 사랑해 줘 (2026)

당신 사랑이 누군데요?

Who is your love?

— 프린세스 브라이드 (1987)

주인공이 누군데요?

Who is the main character?

— 타인의 삶 (2006)