'Marco Polo' Star Rick Yune: Happy to Go Full-Frontal ... BIG Time Mythbuster

When "Marco Polo" producers needed a male cast member to drop trou and show it all for season 2, Rick Yune took one GIANT step ... toward destroying a little myth.

Yune plays the leader Kaidu on the Netflix show, and the writers gave him a meaty nude scene. It's kinda like that famous "Game of Thrones" scene -- Rick was surrounded by fire as he walked on hot coals. But, unlike Emilia Clarke, Rick never flinched at doing the scene.

Sources on set tell us the Korean-American actor actually couldn't wait to shoot episode 5, and you'll see why in this video. We're told there were NO prosthetics on set, and no special effects applied in editing.

We can't show you ALL the natural goods, but trust us, there's plenty. The takeaway: don't be small-minded ... when it comes to stereotypes.