Seo Dong-soo is known for Thirst (2009), Elephant in the Room (2015) and Running Turtle (2009).

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Get a closer look at some of Hollywood's perfect pairs.

Hollywood Power Couples

Get a closer look at some of Hollywood&#39;s perfect pairs.

"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

Song Kang-ho and Kim Ok-bin in Thirst (2009)

Kim Joon-bae, Kwon Yul, Shin Dong-mi, Seo Jun-yeong, Kwak Si-yang, Kim Jae-yeong, and Mi Ram in Elephant in the Room (2015)

Seo Dong-soo

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