The Great Flood is a South Korean film in the genre of science fiction and disaster. It is directed by Kim Byung-woo, who has also written the screenplay with Han Ji-su. Chun Roy-kyoung has produced the film, which was released on Netflix on December 19, 2025. Here's the official synopsis as per IMDb:"A disastrous great flood sweeps the planet. On what may be the last day on Earth, a desperate fight ensues to save a child from a flooding apartment."Let's look at the cast and characters and find out which actor portrayed which role in this South Korean film.The Great Flood cast and characters guideKim Da-mi as Koo An-na View this post on Instagram Instagram PostKim Da-mi plays the role of Koo An-na in The Great Flood. An Na is a single mother who works as an AI developer for a company. A flooding situation forces her to save her young son and the rest of the world. Da-mi has appeared in films like The Witch: Part 1. The Subversion and Soulmate.Park Hae-soo as Son Hee-joPark Hae-soo portrays Son Hee-jo, who works as a security officer. His duty is to keep An-na out of danger and help the team find Ja-mi. He is quite skeptical about artificial intelligence throughout the film. Hae-soo has appeared in titles like Squid Game, By Quantum Physics: A Nightlife Venture, and Phantom.Kwon Eun-seong as Ja-inKwon Eun-seong plays Ja-in, who is a synth child of the protagonist. He goes through a simulation, which helps him with his memories. Towards the end, he manages to reunite with his mother. The child actor has done projects like Ransomed, Academy of Souls, and Pachinko.Other cast members of the filmKang Bin as Mi-jungLee Hak-joo as Shin Ga-wonJeon Yu-na as Lee Ji-sooPark Byung-eun as Lee Hwi-soEun Su as a pregnant womanJeon Hye-jin as Lim Hyeon-moMore about The Great FloodThe Great Flood is produced under the banner of Hwansang Studios. It is a world premiere at the 30th Busan International Film Festival in the section of Korean Cinema Today. Kim Tae-soo is the cinematographer, while Chun-Kyoung Kim is the executive producer.Director Kim Byung-woo spoke about the film in a press conference and said:"It's a genre film. Disaster and science fiction, woven together. Both genres have their own pleasures, and I hope viewers get the full range. [It's] something wondrous and lovely."In the same press conference, Kim Da-mi also spoke about her role:"It was the hardest part of saying yes. I kept asking myself, can I actually feel this? I'm not a mother. Do I have any right to portray it? Eun-seong just made me believe it. He carried things I couldn't articulate."She added:"Motherhood feels too enormous to capture. I just kept coming back to this idea: loving someone more than yourself. That's what I held onto."The film is available on Netflix.Stay tuned to Soap Central for more such stories.