The “Lucky Rookie Intern” Is Back — Lee Yong Jin Officially Joins 2 Days & 1 Night Season 4 as a Full Member

Fans of 2 Days & 1 Night have been waiting for this confirmation, and it’s finally here. Lee Yong Jin — the guy who won everyone over with his quick wit and chaotic energy in Season 3 — is now an official cast member of Season 4. The lineup just got a whole lot more exciting.

2 Days & 1 Night Season 4 — New Full Cast Lineup

Why Lee Yong Jin Is Such a Great Pick?

This isn’t a stranger walking into an unfamiliar room. Lee Yong Jin previously appeared in Season 3 of “2 Days & 1 Night,” where he showcased sharp wit and athletic ability, earning praise as a “lucky rookie intern.” He wasn’t just a guest — he left a genuine impression, the kind that makes viewers immediately want more.

Beginning with filming on May 22, he will join current members Kim Jong Min, Moon Se Yoon, Lee Joon, DinDin and the new youngest member Lee Ki Taek to greet viewers as a new six-member lineup. soompi

Two new additions in less than a week — Lee Ki Taek confirmed on May 14 and now Lee Yong Jin on May 18 — signals that the production team is actively refreshing the show’s energy while keeping its beloved core intact. It’s a smart balance that long-running variety shows often struggle to get right.

Korean variety shows like 2 Days & 1 Night have built loyal audiences over years precisely because of cast chemistry — the unscripted moments, the physical challenges, and the genuine friendships that develop on screen. Bringing in someone like Lee Yong Jin, who already has natural chemistry with the format, minimises the awkward “new member settling in” phase that can sometimes drag.

The mix of veterans and fresh faces heading into this new chapter of Season 4 looks genuinely promising. Lee Yong Jin’s unpredictable reactions alongside the existing members — especially the ever-chaotic DinDin and the reliable Kim Jong Min — should make for compelling Sunday viewing.

For more Korean variety show updates, cast announcements, and episode recaps, visit TechnoSports’ Korean Entertainment & TV section. Also check out our Best Korean Variety Shows to Watch Right Now guide for more recommendations beyond 2D1N.

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