Things quickly go awry when the zombie fighter and the late-night host undress for an afternoon together

By Lanford Beard
Updated March 22, 2021 02:55 PM

The Walking Dead star Steven Yeun battles zombies for a living, but what’s the one thing that really scares him?

A day at the spa. Specifically, a naked spa.

Yeun, 31, went the full Glenn-y to conquer his fear on Wednesday’s Conan. Unfortunately, he and host Conan O’Brien quickly learned their Korean spa experience wouldn’t be as sexy as they hoped.

“There’s no sexual activity, or you will be banned,” warns an attendant in the slightly NSFW video. “For life.”

But that didn’t stop O’Brien, 51, from busting out some ’70s “bow chicka wow-wow” adult movie music. And, indeed, Conan did get a little action when an older gentleman got handsy with his left pectoral in the sauna.

Less pleasant? A soak in a tub kept at a chilly 61 degrees, a torturous full-body scrub (Conan: “That’s skin that’s been on me since Jimmy Carter was president!”) and a vision that made even the strong-stomached Yeun whimper, “Ew! Ew! Ew!”

Before The Walking Dead airs Sundays (9 p.m. ET) on AMC, check out all of the spa-nanigans in the video above.