Air Date
May 27, 2015
Episodes
20 episodes
Mask
Season 1
Episodes
1. 3 Million Won Happiness
May 27, 2015
59 min
2. Girl Who Walks in Memories
May 28, 2015
59 min
3. Best Choice, Worst Choice
June 3, 2015
59 min
4. Heaven Created by the Devil
June 4, 2015
58 min
5. The Poor Rich
June 10, 2015
59 min
6. Family, That Heartbreaking Memory
June 11, 2015
59 min
7. A Chest You Can Cry On
June 17, 2015
59 min
8. A Logical Delusion
June 18, 2015
59 min
9. My Own Reflection
June 24, 2015
59 min
10. Faces of the Mask
June 25, 2015
59 min
11. Game of Lies
July 1, 2015
59 min
12. Unhappy Happiness
July 2, 2015
59 min
13. A Proposal and a Divorce
July 8, 2015
59 min
14. A Spear and a Shield
July 9, 2015
59 min
15. Target
July 15, 2015
58 min
16. The Puppet's Heart
July 16, 2015
58 min
17. Family
July 22, 2015
58 min
18. Trap
July 23, 2015
58 min
19. Vacancy
July 29, 2015
58 min
20. Our House
July 30, 2015
58 min
Soo Ae
Byun Ji-sook / Seo Eun-ha
Ju Ji-hoon
Choi Min-Woo
Yeon Jeong-hun
Min Seok-hoon
Yoo In-young
Choi Mi-Yeon
Jeong Dong-hwan
Byun Dae-sung
Yang Mi-kyung
Kang Ok-soon
Lee Ho-won
Byun Ji-hyuk
Jeon Kuk-hwan
Chairman Choi Doo-hyun
Jo Yoon-woo
Oh Chang-soo
Park Joon-geum
Mrs. Song
Jo Han-sun
Kim Jung-tae
Shin Dong-hoon
[Big guy]
Amy Aleha
[Scientist]
Lee Sung-deuk
Byun Ji Sook's high school classmate
Lee Yoon-jeong
Byun Ji-sook [Young]