anyone know whos the dude in the photo, he looks familiar

Spoiler~






























It's Jin woo's dad who got stuck in a dungeon.

oh thank you for the spoiler ヾ(☆▽☆)

You're welcome if you like to to go ahead of the manga you can read the novel here https://www.lightnovelworld.com/novel/i-alone-level-up-solo-leveling-lightnovel-02021002 (▰˘◡˘▰)