Main
1. Jo In-sung as Jang Jae-yeol➡32
Sung Yu-bin as young Jang Jae-yeol➡13
2. Gong Hyo-jin as Ji Hae-soo➡33
Kang Joo-eun as young Ji Hae-soo
3. Sung Dong-il as Jo Dong-min➡49
4. Do Kyung-soo as Han Kang-woo➡28
Supporting
5. Jin Kyung as Lee Young-jin➡41
6. Lee Sung-kyung as Oh So-nyeo➡24
7. Yang Ik-june as Jang Jae-beom➡38
Noh Tae-yub as young Jang Jae-beom
8. Cha Hwa-yeon as Ok-ja➡52
9. Tae Hang-ho as Tae-yong
10. Kim Mi-kyung as Hae-soo's mother➡50
11. Do Sang-woo as Choi Ho➡26
12. Choi Seung-kyung as Oh Do-deuk
13. Han Jung-hyun as Editor Bae
14. Myung Jong-hwan as Resident
15. Lee Seo-joon as Resident
Special appearances
16. Yoon Jin-yi as Lee Pool-ip➡23
17. Moon Ji-in as Min-young➡27
18. Lee El as Se-ra➡31
19. Baek Seung-do as Hwan-hee
20. Jeong Ji-yun as Hye-jin
21. Ha Yeon-joo as Hyun-joo➡27
22. Jang Ki-yong as Sam➡21
23. Kim Myung Joong as Hae-soo's father
24. Kim Hwan as Talk show host
25. Heo Ji-woong as Radio DJ
26. Goo Ha-ra as Female fan➡23
