Season Regulars 29

1. 

   Kim Soo-hyun

   Moon Gang-tae

2. 

   Seo Yea-ji

   Ko Moon-young

3. 

   Park Gyu-young

   Nam Joo-ri

4. 

   Oh Jung-se

   Moon Sang-tae

5. 

   Park Jin-joo

   Yoo Seung-jae

6. 

   Kim Chang-wan

   Oh Ji-wang

7. 

   Jang Young-nam

   Park Haeng-ja

8. 

   Kim Mi-kyeong

   Kang Soon-deok

9. 

   Kang Ki-doong

   Jo Sae-joo

10. 

    Jeong Jae-kwang

    Joo Jeong-tae

11. 

    Kim Joo-heon

    Lee Sang-in

12. 

    Lee Eol

    Go Dae-hwan

13. 

    Jang Gyu-ri

    Seon-byul

14. 

    Choi Woo-sung

    Oh Cha-yong

15. 

    Ji Hye-won

    Lee Ah-reum

16. Jung Ji-hwan

    Publishing Co. Staff

17. 

    Kim Ki-cheon

    Kan Pil-ong

18. 

    Seo Joon

    Kwon Min-seok

19. 

    Ha Kyoung-min

    Psychiatrist at OK Psychiatric Hospital

20. 

    Kang Ji-eun

    Park Ok-ran

21. 

    Joo In-young

    Yoo Sun-hae

22. 

    Kim Su-in

    Young Go Moon-young

23. 

    Moon Woo-jin

    Young Moon Gang-tae

24. 

    Lee Kyu-sung

    Young Moon Sang-tae

25. 

    Choi Hee-jin

    Kang-tae and Sang-tae's Mother

26. 

    Jung Ji-hyeon

    Publishing House Staff

27. 

    Cheon So-Ra

    Publishing House Staff

28. 

    Go Han-min

    Publishing House Staff

29. 

    Yu Yeon Seok

    Publishing House Staff

Guest Stars 5

1. 

   Jung Seung-kil

   [Book critic]

2. 

   Kim Geon-ho

   [Book signing parent]

3. 

   Lee Ji-hae

   [Book signing parent]

4. 

   Jo Yi-hyun

   [Dinosaur boy]

5. 

   Park Chul-Min

   [TV reporter]

Crew 2