Watch: Kim Ok Bin, Lee Joon Hyuk, And More Have A Lot Of Fun Filming Dark And Scary Scenes For "Dark Hole"

OCN’s “Dark Hole” might be a terrifying drama about survival, mutants, and serial killers, but the cast are having a lot of fun behind the scenes!

“Dark Hole” is a mutant survival drama about a group of survivors who fight for their lives against mutant humans created after breathing in the dark smoke from a mysterious sinkhole. Lee Joon Hyuk stars as Yoo Tae Han, a native of the town of Mu Ji, where the sinkhole emerges. Kim Ok Bin stars as Lee Hwa Sun, a police detective from Seoul who comes to Mu Ji in search of her husband’s killer.

In a behind-the-scenes video from episode 2, all the cast members, from lead actors Kim Ok Bin and Lee Joon Hyuk to supporting actors who show the drama characters’ fight for survival as humans begin to transform into mutants, have fun filming difficult scenes of action, being chased through the forest, stunt driving, and exorcism.

In the drama, Kim Ok Bin’s character suffers from hallucinations of a mysterious masked serial killer who murdered her husband. In real life, Kim Ok Bin and the masked actress laugh and embrace each other and Kim Ok Bin exclaims at how cute the mask appears. Lee Joon Hyuk races to the scene with a bright smile, but he and Kim Ok Bin soon focus on the action scene as he wrestles the gun away from her.

Tak Jae Hoon, who made a cameo in the drama, and Im Won Hee prove themselves the masters of ad-libbing scenes. Even when the door, which is supposed to be firmly shut against a horde of mutants, accidentally comes loose, the two actors don’t lose their cool and continue filming the scene as if it was natural. Later, the director gets so absorbed in Im Won Hee’s ad-libs that he forgot the timing to signal Tak Jae Hoon to enter the scene.

As the action scenes get rougher and more intense, with Kim Ok Bin going up on wires to simulate a mutant attack, the actors are even more careful to take care of each other, with Lee Joon Hyuk handing out hot packs to supporting cast members.

Check out the behind-the-scenes video with English subtitles below!

Watch the first episode of “Dark Hole” below!

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