Dear X

Dear X (Korean: 친애하는 X) is a 2025 South Korean melo-thriller television series co-written by Choi Ja-won and Vanziun, directed by Lee Eung-bok and Park So-hyun, and starring Kim You-jung, Kim Young-dae, Kim Do-hoon and Lee Yul-eum. Based on the Naver Webtoon of the same title by Vanziun, it depicts the rise and downfall of top actress Baek Ah-jin and her two faces hidden behind it. The series first premiered in the On Screen section of the 30th Busan International Film Festival on September 18, 2025, where two of its twelve episodes were screened. It then premiered on TVING with the release of its first four episodes on November 6, 2025, at 18:00 (KST), followed by two new episodes every Thursday, for a total of 12 episodes. It is also available for streaming on HBO Max and Viki in selected regions, on Disney+ in Japan, and on STARZPlay in the MENA region.

Cast

Kim You-jung · Kim Young-dae · Kim Do-hoon

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