Running Man : Member Relations

1. Yoo Jae Suk & Ji Suk Jin (Suk Brothers)

This two MCs have been close friends for more than 20 years. This relation was formed because they have same name "Suk". In episode 27, Suk Jin was referred as Jae Suk's sunflower (episode 27) because he always look at him.

2. Kim Jong Kook, HaHa, and Kang Gary (Kim Jong Kook & his two kids)

They three often found in the same team. HaHa and Gary are usually under command of the Commander Jong Kook. Moreover, HaHa and Gary usually comply the Commander commands so they are always seen shown as being afraid of Jong Kook.

3. Kang Gary & Song Ji Hyo (Monday Couple)

This is a primary loveline show. They show interest on Monday (which that was Running Man filming day). But since Ji Hyo have relationship with her management company's CEO, the loveline between the two has been removed.

4. Kim Jong Kook & HaHa (My Big Brother & My Little Brother)

These two are always in the same team and during the games, they have big brother & little brother relationship. They often addressed each other as such in playful manner.

5. Song Joong Ki & Song Ji Hyo (Song-Song Couple, Song-Song Siblings)

Another loveline in Running Man. It first attracted attention from episode 15 when Joong Ki kissed Ji Hyo's cheek and episode 18 when Joong Ki confessed love to Ji Hyo like "Mary and Jack" in Titanic movie. But because Ji Hyo was in relationship with Gary, they later envolved into a siblings relationship as Song-Song Siblings.

6. Lee Kwang Soo & Song Joong Ki (Same-Aged Friends)

Kwang Soo claimed to be close friends with Joong Ki due their same age (both born in 1985). But Joong Ki denied their friendship. This made Kwang Soo depressed. But Joong Ki finally admitted their close friendship in his leaving speech during filming on his last episode.

7. Yoo Jae Suk & Lee Kwang Soo (Yoo-Lee, Lee-Yoo)

This was formed in episode 90 when Jae Suk and Kwang Soo was paired up as team by combining their surenames, Yoo (유) and Lee (이). 

8. Ji Suk Jin & Lee Kwang Soo (New Dumb & Dumber, Easy Brothers)

This relation was first formed in episode 65 when they become a duo, acting similarly to Dumb and Dumber couple in Family Outing. Then, they known as Easy Brothers in episode 68 when they were designated spies. The clue was "Easy", a combination from Lee (pronounced "ee") and Ji. Whenever they are paired up, they're also known for show their "Feel, Touch, Cross!" cheer before each mission.

9. Yoo Jae Suk, Ji Suk Jin, and Lee Kwang Soo (Jail Regulars Trio, Lee-Yoo-Ji Brothers)

For the first relationship, they known as it because this trio often eliminated the earliest during Bells Hide and Seek, and they meet each other in the "jail". For the second relationship, it was formed because Suk Jin getting jealous of Kwang Soo being close friend to Jae Suk, and called themselves "Lee-Yoo" in episode 81. Ji Suk Jin reluctanly joins them to become "Lee-Yoo-Ji Brothers". 

10. Lee Kwang Soo, Ji Suk Jin, and Gary (Gaisy)

It was pronounced as "Gae-ee-ji", first name appeared in episode 72 after they weren't chosen by the guest of the episode. 

11. Kim Jong Kook & Lee Kwang Soo (Kook-Soo, Tiger and Giraffe)

Kook-Soo was formed in episode 82 when they both were paired into one team. Their names were combined to form Kook-Soo which is a pun because it means "noodles" in Korean. Since Jong Kook resembles as Tiger and Kwang Soo as Giraffe, their relationship is known as Tiger and Giraffe (remember their each peculiarity are "strong" and "tall"). 

12. Song Ji Hyo, Yoo Jae Suk, and Ji Suk Jin (Ji Hyo and Two Uncles)

This was formed when Ji Hyo went a supermarket to tasted food with Jae Suk and Suk Jin in episode 16. Other members look at them as Ji Hyo & Two Uncles because Ji Hyo was a youngest in that team.

13. Yoo Jae Suk & Kim Jong Kook (Eternal Rival)

This is the leader of types of members. They both always compete each other to get Running Man Balls. Yoo Jae Suk was "middle-age type" and Kim Jong Kook was "strong type". No wonder if they both always dissent.

14. Kim Jong Kook & Song Ji Hyo (Strongest Chasing Couple)

This relationship was formed because they both can arrange the strategies to complete the missions. They both can eliminate other player quickly and can be the last player in one mission. Their cooperation was enabling them to complete the mission successfully.