Season Regulars 25

1. 

   Yoo Ji-tae

   Professor

2. 

   Yunjin Kim

   Seon Woo-jin

3. 

   Park Hae-soo

   Berlin

4. 

   Jun Jong-seo

   Tokyo

5. 

   Lee Won-jong

   Moscow

6. 

   Kim Ji-hun

   Denver

7. 

   Jang Yoon-ju

   Nairobi

8. 

   Lee Hyun-woo

   Rio

9. 

   Kim Ji-hoon

   Helsinki

10. 

    Lee Kyu-ho

    Oslo

11. 

    Park Myung-hoon

    Cho Young-min

12. 

    Kim Sung-oh

    Cha Moo-hyeok

13. 

    Lee Ju-bin

    Yun Mi-sun

14. 

    Lee Si-woo

    Anne Kim

15. 

    Kil Eun-sung

    Park Chul-woo

16. 

    Park Soo-young

    Yoon Chang-soo

17. 

    Jang Hyun-sung

    Kim Sang-man

18. 

    Lim Ji-yeon

    Seoul

19. 

    Lee Yoon-hee

    Ri Cheong-myung

20. 

    Shin Soo-Ho

    Park Jae-wook

21. 

    Jeong Jae-seong

    Marshal Kim

22. 

    Lee Chang-hoon

    Oh Jae-Yun

23. 

    Lee Yong-nyeo

    Park Pil-Soon

24. 

    Lim Hyung-kook

    Jeon Yong-Su

25. 

    Hong In

    Hwang Hyun-Ho

Guest Stars 2

1. 

   Lee Yang-hee

   Rio's father

2. 

   Byun Yun-jeong

   Rio's mother

Crew 4