Here's when your favorite celebrities loosen up from scripts, and cut-edit takes in filming and just being themselves. Let's enjoy the funny world of the famous and long-running variety show, "Running Man."

With the tons of programs seen on TV these days and with the millions of people tuning in, somehow, there are still fanatics who missed to watch these episodes of our favorite Korean actors!

These are the guest actors going candid and creating the funniest episodes ever with the "Running Man," as compiled by Kdramastars.

Ji Chang Wook

Ji Chang Wook's "Running Man's" guest appearance became his most unforgettable one!

The actor joined the episode 212, back in 2014, as they all flew to Taiwan and received the most substantial punishments ever done. The team rode Asia boasts a 90-degree drop, coupled with a 360-degree spiral whirl. Ji Chang Wook was able to call his mother for help on the heart-stopping challenge. Nevertheless, despite the fearful face, he still looks handsome.

Kang Ha Neul

In episode 494 of "Running Man," Kang Ha Neul can be seen in an all-out smile. During the episode, Park Seo Joon and Kang Ha Neul became guests of the show. They competed by showing their talents, and judges will be scoring each performance based on their exhibited skill. Lee Kwang Soo did his best to dance, but in the end, he received a -5 score for his performance. Meanwhile, Kang Ha Neul mesmerized the ladies by just dancing and smiling, and with the charming performance, he received a whopping 350 scores.

Park Seo Joon

In the same episode with Kang Ha Neul, Park Seo Joon proves that being cute and handsome takes it all! The actor knelt in front of the female judges and showed off his charms. After the judges lost themselves by the exhibited charms of the actor, he got the most significant score, which envies the male members of the show.

Kim Soo Hyun

Kim Soon Hyun's laughter is so contagious just by looking at him makes you smile as well. The actor, In episode 147, laughs out loud, looking at the group throwing towels with each other.

Gong Yoo

Gong Yoo finally made his great breather from television dramas after guesting in "Running Man." Being know to portray excellently in various roles given to him, Gong Yoo, in episode 175 of "Running Man," transformed into a beast trying to beat Gary in their pool competition. The actor is just cute and funny in the scenes! Gong Yoo can't keep himself laughing throughout the episode.