

By Dramabeans
Kang Kyung-hoon
Shin Jae-won
16
45 minutes
tvN
South Korea
Korean
Source: Wikipedia
Firefighter Kim Chul-soo (ep. 10–12)
Seo Byung-hoon Lee Jae-joon as young Byung-hoon
Ballerina Seol Yoo-jin, the A-ranked client Jung-nam likes (ep. 1)
Hye-ri
Nurse Lee Hae-shim (ep. 10–12)
Min Se-kyung, the girl Ho-yeol has a crush on, but who likes Arang (ep. 3–5)
Yoon Yi-seol
The magician Soo-ah likes (ep. 9)
Librarian Ma Jae-in (ep. 1–3)
Ah-rang
Seon Jung-nam, Min-young's F-ranked client at her old agency (ep. 1)
Gong Min-young
Bong Soo-ah, a creepy-looking "Ghost Girl" who hides behind her hair and can't look men in the eye (ep. 8–9)
Lee Min-shik
Idol singer Ray / Yang Ho-yeol (e.p 3–5)
Young Byung-hoon
Moo-jin
Choi Dal-in, a baker who's a masochist in love (ep. 6–8)
Go Do-il
The sommelier Yoo-jin likes (ep. 1)
Cha "Master" Seung-pyo
Veterinarian Jin Joon-hyuk (ep. 1–3)
Dokgo Mi-jin, a chef and Dal-in's former rival in a cooking competition (ep. 6–8, 14)