| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Jung Dae-yoon | Crew | Directing | Director | 16 |
Kang Mi-ja | Crew | Editing | Editor | 16 |
 Yoo Ki-hyun | Crew | Sound | Theme Song Performance | 16 |
Jo Sung-hee | Crew | Writing | Writer | 16 |
 Yoon Yoo-sun | Cast | Actress | Cha Hye Jung [Ha Ri's mother] | 2 |
 Lee Il-hwa | Cast | Actress | Han Jung-hye | 16 |
 Lee Joon-gi | Cast | Actor | Himself | 1 |
 Nam Jung-hee | Cast | Actress | Guest in room 701 | 1 |
 Ahn Sang-tae | Cast | Actor | Convenience store's worker | 1 |
 Choi Si-won | Cast | Actor | Kim Shin-hyuk | 16 |
 Lee Byung-joon | Cast | Actor | Min Yong Gil [Ha Ri's father] | 2 |
 Park Choong-seon | Cast | Actor | Kim Jung Sub | 16 |
 Go Joon-hee | Cast | Actress | Min Ha-ri | 16 |
 Hwang Seok-jeong | Cast | Actress | Kim Ra Ra | 16 |
 Jung Da-bin | Cast | Actress | Kim Hye-jin (young) | 16 |
 Jeong Dong-gyoo | Cast | Actor | Boo Joong-man | 16 |
 Shin Dong-mi | Cast | Actress | Cha Joo-young | 16 |
 Hwang Jung-eum | Cast | Actress | Kim Hye-jin | 16 |
 Uie | Cast | Actress | Herself | 1 |
 Seo In-guk | Cast | Actor | Himself | 1 |
 Park Hyung-sik | Cast | Actor | Himself | 1 |
 Park Seo-jun | Cast | Actor | Ji Sung-joon | 16 |
 Park Yu-hwan | Cast | Actor | Kim Joon-woo | 16 |
 Shin Hye-sun | Cast | Actress | Han Seol | 16 |
 Ahn Se-ha | Cast | Actor | Kim Pung Ho | 16 |
 Kang Soo Jin | Cast | Actress | Joo Ah Reum | 16 |
 Kim Ha-kyoon | Cast | Actor | Bu Jung Man | 16 |
 Lee Ja-in | Cast | Min Ha Ri [Young] | 3 | |
 Kim Sung-oh | Cast | Actor | Guy from the bar | 1 |
 Kim Je-dong | Cast | Actor | Emcee | 1 |
 Seo Jeong-yeon | Cast | Actress | Na Ji Seon [Ha Ri's step-mother] | 4 |
 Bae Min-jung | Cast | Actress | Lee Kyung | 16 |
 Jung Heon | Cast | Actor | Se Hoon | 16 |
 Dean Dawson | Cast | Actor | American boss | 1 |
 Joey Albright | Cast | Actor | Ted [Swiss Traveler] | 1 |
 Cha Jung-won | Cast | Actress | Jung Sun Min | 16 |
 Lim Se-joo | Cast | Actress | Eun Young | 16 |
 Seo Gwang-jae | Cast | Actor | Interviewer | 1 |
 Im Kang-sung | Cast | Actor | Ha Ri's date | 5 |
 Lee Chae-kyung | Cast | Actress | Author Lee [Children's book author] | 3 |
 Cho Chang-geun | Cast | Actor | Kwang Hee | 16 |
 Yang Han-yeol | Cast | Actor | Ji Sung Jun [Young] | 16 |
 Jeong Hyun-seok | Cast | Actor | Kang Po To [Photographer] | 1 |
| Person | Type | Job | Role(s) | Episodes |
