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| Bae Suzy |
| Lee Yu-Mi |
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| Jung Eun-Chae | Oh Man-Seok | Baek Ji-Won | Kim Soo-Jin | Woo Ji-Hyun |
| Lee Hyun-Joo | Designer Lee | Designer Lee's wife | Kim Soo-Jin | Sun-Woo |
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| Min Dae-Sik |
| cook (ep.1) |
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| Kim Joon-Han | Kim Ki-Cheon | Lee Chae-Hyun |
| Choi Ji-Hoon | Choi Ji-Hoon's father | Choi Min-Jae |
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| Park Soo-Yeon | Hong Hee-Won | Jang Dae-Woong | Jeon Young | Kwon Hyuk-Soo |
| Secretary Cho Yu-Mi | Secretary Jung | Chauffeur Kim | housekeeper (ep.2-3) | lawmaker |
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| Kang Moon-Kyung | Jung Doo-Kyum | Baek Kil-Sung | Lee Kyung-Oh | Park Sin-Un |
| Min Jun-Won (ep.3) | lawmaker (ep.3-4) | campaign manager (ep.3) | Kim Dae-In | PR staff (ep.4) |
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| Yang Ha-Yoon | Seo Hyun-Woo | Yang Seung-Kul |
| PR staff (ep.4) | Mayor Oh Myung-Hoon (ep.5) | Prosecutor General Lee Seung-Moo (ep.5) |
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| Choi Yong-Jin | Kim Jung-Young | Choi So-Yool | Kim Soo-In |
| Lee Sang-Ho | Yoon Hong-Ju | Lee Yu-Mi (6 years old) | Lee Yu-Mi (14 years old) |
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| Park Ye-Young | Heo Hyeong-Gyu | Kim Seung-Tae | Lee Young-Sook |
| Han Ji-Won | Kang Jae-Ho | Anna's father (ep.2) | Anna's mother (ep.2) |
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| Kang Shin-Chul | Jo Seung-Yeon | Jung Woo-Young | Ma Jung-Pil |
| Reporter Hwang | department head | reporter | reporter |
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| Yoon Ji-Min | Kang Hak-Soo | Han Dong-Hwan | Jung Sun-Chul |
| Professor Yoon So-Young | dean | professor | Jung Hee-Sung |
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| Kim Geu-Rim | Kim Keum-Soon | Kim Young-Ah | Lee Seung-Ha | Kim Won-Suk |
| high school teacher (ep.1) | landlady (ep.1,4) | art institute director (ep.2,4) | consignment store staff (ep.2) | art institute director (ep.2) |
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| Choi Moon-Kyoung | Park Jung-Eon | Jang Ha-Eun | Jeon Su-Yeon | Jeong Seo-Yeon |
| art institute director (ep.2) | art institute director (ep.2) | Na-Rae (ep.2-3) | English language institute staff (ep.2) | counterfeit clothes seller (ep.2) |
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| Baek So-Hyun | Kim Kwang-Suk |
| art institute student (ep.2) | real estate agent (ep.2) |
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| Kim Si-Eun | Lee Je-Yeon | Park Jin-Sung | Park Byung-Wook |
| homeroom teacher | music teacher | head high school teacher | vice principal |
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| Jung Eun-Kyung | Paul Battle | Hannah Malkin | Hong Jung-Min | Bong Man-Dae |
| Aunt Ttangjib | Colonel Phillips (ep.1) | Catherine Phillips (ep.1) | ballet student (ep.1) | art institute instructor (ep.1) |
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| Moon Ki-Young | Kim Min-Chae | Kim Joo-A | Kim Mi-Hye | Yeo Ji-Min |
| praying group (ep.1) | praying group (ep.1) | praying group (ep.1) | Yale alumna (ep.2) | Lee Jin-Young (ep.2) |
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| Han Joo-Young | Lee Mi-Eun | Na Mi-Hee | Han Hye-Ji | Jun Joon-Woo |
| wealthy wife (ep.4) | wealthy wife (ep.4) | wealthy wife (ep.4) | pharmacist (ep.4) | police officer (ep.5) |
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| Lee Sung-Il |
| detective (ep.5) |
Additional Cast Members:
