Son Yeo-eun

Ha Mun-young

Choi Sun-joo, Ji-cheol's wife, an erotic novelist and massage chair salesperson (37 years old)

Kim Moon-hee

Goo Se-kyung

Yoon Ji-soo, Jung-woo's wife.

Do Hyun-jeong

Sun Hye-joo

Han Chae-rin

Princess Seung-man, later Queen Jindeok of Silla

Um Sun-hwa (Mok-dan's best friend, Circus member)

One of Ji-hoon's early blind dates, set up for him by Hyun-kyung. Unfortunately, Yeo-eun is exposed to Ji-hoon's less-than-charming social obliviousness as he notes her jaundiced eyes and inquires in public whether her urine is brown and bubbly. Her cameo ends with her furious reaction to Ji-hoon as he ignores her to watch an important baseball game of SK Wyverns.

Jung In-young (Eun-sung and Seung-mi's friend)

Choi Hyun-jung