- Kim Yoon-joo - Ad director
- Kim Joo-ah - Young Won's landlord
- Song Hoon - Featured homeowner
- Im Jae-geun - Jasung Real Estate Investment Co. employee
- Yoo Ok-joo - Homeowner
- ??? - Security guard
- Kim Kwang-shik - Staff
- Sim Yi-young - Architect
- Kim Dong-young - Architect's husband
- Choi Kyo-sik - Taxi driver
- Kim Sang-wook - Rich married man
- Lee Se-rang - Apartment woman
- Lee Jung-eun - Lee Soo-Jung
- Won Choon-gyu - CEO
- Sung Chang-hoon - Staff
- Yoon Seo-hyun - Chief editor
- Kim Bum-jin - Ui Joo's boyfriend
- Min Young - Lee Jin-Sook
- Kim Jae-il - Yoo Seung-Won
- Min Woo-gi - Bus driver
- Jang Young-hyeon - Auction bidder
- Kim So-eun - "Cutie Pie"
- Park Yong - 2nd home owner
- Ha Seok-jin - Lee Heart
- ??? - Jeon Heart
- ??? - Sang Soon's blind date
- Tae In-ho - Kim Dong-Sik
- ??? - Kwan Min-Guk
- Ahn Su-bin - Narrow house owner
- Dong Hyo-hee - Young Won's former landlord
- Lee Soo-hyung - Apartment owner
- ??? - Sang Soon's father
- ??? - Young Won's father
- Lee Chang-min
- Myung Soo-Hyun
??? interpreta a Yoo Ja Sung en la serie.
Jeong So-min interpreta a Na Young Won en la serie.
??? hace el papel de Yeo Eui Joo.
Kim Won-hae hace el papel de Choi Go.
Yun Ji-on interpreta a Jang Chan en la serie.
Lee Hwa-Kyum interpreta a Yook Mi Ra en la serie.
Ahn Hyun-ho interpreta a Kye Joo Hee en la serie.
Ahn Chang-hwan hace el papel de Nam Sang Soon.
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