| | | | Day 1: 2008 |
| | Kim | Young-Sook | Narrator and Protagonist. The best haenyeo. |
| | Kang | Gu-Ja | A baby diver. Young Sook's co-diver and childhood friend. |
| | Kang | Gu-Sun | Gu-ja's younger sister. |
| | Ji-Young | | Mi Ja's granddaughter. Aka: Janet. |
| | Jim | | Janet's husband. |
| | Han | Mi Ja | Young Sook's best friend. Janet's grandmother. |
| | Clara | | Janet's daughter. |
| | Scott | | Janet's son. |
| | | | Part 1 |
| | Yang | Do-Saeng | Sun-Sil's diving partner and best friend. |
| | Yang | Yu-Ri | Do-Saeng's daughter. A baby diver. |
| | Yang | Jun-Bu | Do-Saeng's son. |
| | Shaman | Kim | The spiritual leader and guide. |
| | Aigo | | Yu-Ri's fiancé. |
| | Kim | Sun-Sil | Young Sook's mother. |
| | Han | Gil-Ho | Mi Ja's father. |
| | Lee-Ok | | Mi Ja's aunt. |
| | Him | Chan | Mi Ja's uncle. |
| | Ko | | One of the founders of Jeju City. |
| | Bu | | One of the founders of Jeju City. |
| | Yang | | One of the founders of Jeju City. |
| | Halmang | Jacheongbi | The Goddess of Love. |
| | | | Day 2: 2008 |
| | Dr. | Shin | The emergency doctor. |
| | | | Part 2 |
| | Halmang | Smaseung | The Goddess who protects babies. |
| | Alexi | | The man who accompanied Mi Ja and Young Sook. |
| | Vlad | | Alexi's friend. |
| | Lee | Sang-Mun | Mi Ja's fiancé. |
| | Little | Sister | Young Sook's little sister. |
| | Lee | Han-Bong | Sang Mun's father. |
| | Grandmother | | Young Sook's grandmother. |
| | Madame | Lee | Mi Ja's mother-in-law. |
| | Kim | In-Ha | The leader of the collective. |
| | Lee | Yo-Chan | Mi Ja and Sang Mun's son. |
| | Yang | Min Lee | Young Sook and Jun Bu's daughter. |
| | Yang | Gi Won | The collective chief. |
| | Wan | Soon | Gu Sun's daughter. |
| | Granny | Cho | Min Lee's babysitter. |
| | Jang | Ki-Yeong | Young Sook's new neighbor. |
| | Yun | Su | Ki-Yeong's daughter. Jun Bu's student. |
| | Yang | Sung-Soo | Young Sook and Jun Bu's son. |
| | | | Day 3: 2008 |
| | Roh | Tae-Woo | The first President to be elected by South Koreans. |
| | | | Part 3 |
| | Thurman | Stout | The Jeju military governor. |
| | Colonel | Brown | The new American in charge. |
| | Yoo | | The Korean Governor. |
| | General | Dean | The U.S. military governor in charge of Korea. |
| | Rhee | Syngman | The American elected Korean President. |
| | Kyung | Soo | Young Sook and Jun Bu's son. |
| | | | Day 4: 2008 |
| | Kim | Dae-Jung | The new Korean President. |
| | | | Part 4 |
| | Park | Chung-Hee | The new President. |
| | Yeongdeung | | The Goddess of the wind. |
| | Joon-Lee | | Young Sook's daughter. |
| | Yang-Jin | | Young Sook's diving partner. |
| | Dr. | Park | A scientist. |
| | Dr. Lee | | Dr. Park's colleague. |
| | Dr. Bok | | Dr. Park's colleague. |
| | Dr. Jones | | Dr. Park's colleague. |
| | Teacher | Oh | Joon Lee's teacher. |
