| Darsteller | Rolle |
|---|---|
| Chase Maser | Gi-Tae (10) |
| Nicole Fong | Students (10) |
| Paul Syre | Ji-Su (10) |
| Park Joo-Hyun | Bae Gyuri (10) |
| Angie Kim | Su-Ji (10) |
| Darren Keilan | Students (10) |
| Kim Dong-Hee | Oh Jisoo (10) |
| Da-bin Jung | Seo Minhee (10) |
| Nam Yoon-Su | Kwak Kitae (10) |
| Min-su Choi | Mr. Lee (10) |
| Hyuk-kwon Park | Cho Jinwoo (10) |
| Kim Yeo-jin | Lee Haegyoung (10) |
| Lauren Han | Minhee (10) |
| Hester Jean Lee | Gyuri (10) |
| Brandon Win | Kang Bbang (5) Gyoungsik (4) |
| David Chen | Cell Phone Voice (9) |
| Kim Kwang-gyu | Byung Kwan (8) |
| Victoria Grace | Hyemin (6) |
| Han-sol Kwon | Hye Min (5) |
| Yi-yeong Shim | Gyuri's mother (4) |
| Seo Ye-hwa | Sung Mi (4) |
| Young-pil Kim | Gyuri's father (3) |
| Baek Joo-Hee | Cho Mi Jung (3) |
| Dae-hoon Choi | Mr. Choi (2) |
| Park Ho-San | Jisoo's father (2) |
| Michael Shen | Compensated Dating Man |
| Billy Choi | Instructor Kim |
| Kim Yi-Kyeong | Kim Ji Hye |