Netflix’s Wall to Wall (2025): Full list of cast and characters featured in the movie
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A scene from Wall to Wall (Image via YouTube/@Netflix)Wall to Wall is a mystery-thriller film from South Korea that was written and directed by Kim Tae-joon. The story based on Kim's original script, takes place in Seoul and shows the realities of living in cramped apartments and facing financial difficulty. The film was released in the United States on Netflix on July 18, 2025, marking its global debut on the platform.
The story revolves around Noh Woo-sung (Kang Ha-neul), who uses his life savings and even his mother's garlic farm to purchase an 84-square-meter apartment in the heart of Seoul's exorbitant real estate market. After being thrilled at first, he is soon plagued by constant noise from above and below, which causes him to go bankrupt and mentally collapse.
Woo-sung discovers a mysterious conspiracy involving neighbors, including journalist Jin-ho (Seo-Hyun-woo) and the penthouse's Eun-hwa (Yeom-Hye-ran), as paranoia grows. The film transitions from claustrophobic dread to startling revelations about corruption, surveillance, and violence motivated by desperation.
Exploring the Cast and Character of Wall to Wall
Kang Ha-neul as Woo-sung
Kang Ha-neul plays Noh Woo-sung, a hardworking 30-something office worker whose ambition of purchasing an 84-square-meter flat in Seoul turns into a nightmare. He sold his mother's garlic crop, borrowed money, and used all of his savings to pay for it. After moving in, Woo-sung is plagued by constant, enigmatic noise from nearby floors, which causes him to slide into debt, insomnia, and confrontation with other neighbors. As his financial and mental health decline, he joins forces with his neighbor Jin-ho to uncover a sinister plot connected to the building's elite, which forces him to face corruption, betrayal, and his own eroding sanity.
Kang Ha-neul was born on February 21, 1990 in South Korea. Some of his best work are Squid Game (2024-25), Streaming (2025), and Love Reset (2023).
Seo Hyun-woo as Jin-ho
In Wall to Wall, Seo Hyun-woo plays Jin-ho, Woo-sung's enigmatic upstairs roommate. Jin-ho, a purported investigative journalist, first offers to assist in identifying the cause of the continuous noise that is torturing Woo-sung. His intentions, however, become darker as the narrative progresses; it becomes clear that he is intentionally causing the unrest in order to exact revenge on Eun-hwa, the influential penthouse occupant, whom he believes is responsible for stifling his previous exposé.
Seo Hyun-woo is known for his work in shows such as Our Movie (2025), The Fiery Priest (2019-24), and Seoul Busters (2024).
Yeom Hye-ran as Eun-hwa
In Wall to Wall, Yeom Hye-ran plays Jeon Eun-hwa, the apartment complex's strong and mysterious resident representative. Eun-hwa, a former prosecutor who now lives in the penthouse, uses her legal expertise and connections to manage tenant affairs. She appears helpful while secretly promoting real estate interests and maintaining property prices.
South Korean actress Yeom Hye-ran is best known for Amazon Bullseye (2024), Law and the City (2025), and Citizen of a Kind (2024).
Supporting cast of Wall to Wall
The film features a talented ensemble of actors in supporting roles, some of whom are listed as follows.
- Yoon Jeong-il as Lee Sang-uk
- Kim Hyun-jung as Ha Ju-gyeong
- Baek Do-gyum as the maintenance man
- Ryu Seung-hyun as the real estate agent
- Jung Sung-il as Prosecutor
- Woo Sung-eun as Woo-sung’s fiancée
- Jo Jae-young and Seo Han-gyeol as police officers
- Kim Hak-seon as police station chief
- Jeon Jin-oh as Jeon Gwang-cheol
- Park Sung-il as Ga Ju-ho
- Lee Jong-goo as Kim Yeong-Cheol
- Jo Han-joon as Lee Chang-u
- Kang Ae-sim as Nam Hae-ju
- Kim Tae-moon as GH
- Na Ho-sook as Na Ok-sun
- Jo Yu-ra as Lee Ju-yeon
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