Seo Suk-gyu was born on 27 April 1984 in South Korea. He is an actor, known for The Great Flood (2025), Emergency Declaration (2021) and Ashfall (2019).

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The Biggest Movies and TV Coming in September

"The Gentlemen" and "Slow Horses" return this fall, while the "Reacher" spin-off series "Neagley" makes its debut. See our guide of the biggest Fall TV and streaming releases.

2026 Fall TV and Streaming Watch Guide

&quot;The Gentlemen&quot; and &quot;Slow Horses&quot; return this fall, while the &quot;Reacher&quot; spin-off series &quot;Neagley&quot; makes its debut. See our guide of the biggest Fall TV and streaming releases.

Get a closer look at these actors from their many TV and streaming series roles.

Streaming Stars, Then and Now

Lee Byung-hun, Song Kang-ho, and Yim Si-wan in Emergency Declaration (2021)

Lee Byung-hun, Ha Jung-woo, Jeon Hye-jin, Ma Dong-seok, and Bae Suzy in Ashfall (2019)

Jung Woo-sung, Sul Kyung-gu, and Han Hyo-joo in Cold Eyes (2013)

Seo Suk-gyu

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