I Hear Your Voice Season 1
01. Episode 1
Park Soo Ha met Jang Hye Sung when he was eight years old and she stood witness to his father's murder. He has been looking for her ever since then.
Lee Bo-young
Jang Hye-Sung
Lee Jong-suk
Park Soo-Ha
Yoon Sang-hyun
Cha Kwan-Woo
Lee Da-hee
Seo Do-Yeon
Jung Woong-in
Min Joon-Kook
Kim Hae-sook
Eo Choon-Sim
Kim Kwang-kyu
Kim Kong-Sook
Jung Dong-Hwan
Seo Dae-Seok
Kim Ga-eun
Ko Sung-Bin
Kim So-hyun
Jang Hye-Sung (young)
Goo Seung-hyun
Park Soo-Ha (young)
02. Episode 2
Jang Hye Sung gets hired as a public defender. Her first case involves Park Soo Ha's classmate, Go Sung Bin.
Lee Bo-young
Jang Hye-Sung
Lee Jong-suk
Park Soo-Ha
Yoon Sang-hyun
Cha Kwan-Woo
Lee Da-hee
Seo Do-Yeon
Jung Woong-in
Min Joon-Kook
Kim Hae-sook
Eo Choon-Sim
Kim Kwang-kyu
Kim Kong-Sook
Jung Dong-Hwan
Seo Dae-Seok
Kim Ga-eun
Ko Sung-Bin
Kim So-hyun
Jang Hye-Sung (young)
Goo Seung-hyun
Park Soo-Ha (young)
03. Episode 3
To find evidences of Sung Bin's innocence, Hye Sung and Gwan Woo visit Sung Bin's school dressed as high school students.
Lee Bo-young
Jang Hye-Sung
Lee Jong-suk
Park Soo-Ha
Yoon Sang-hyun
Cha Kwan-Woo
Lee Da-hee
Seo Do-Yeon
Jung Woong-in
Min Joon-Kook
Kim Hae-sook
Eo Choon-Sim
Kim Kwang-kyu
Kim Kong-Sook
Jung Dong-Hwan
Seo Dae-Seok
Kim Ga-eun
Ko Sung-Bin
Kim So-hyun
Jang Hye-Sung (young)
Goo Seung-hyun
Park Soo-Ha (young)
04. Episode 4
Min Joon Gook is planning his revenge on Hye Sung. Meanwhile, Hye Sung and Gwan Woo both receive a case involving twin brothers.
Lee Bo-young
Jang Hye-Sung
Lee Jong-suk
Park Soo-Ha
Yoon Sang-hyun
Cha Kwan-Woo
Lee Da-hee
Seo Do-Yeon
Jung Woong-in
Min Joon-Kook
Kim Hae-sook
Eo Choon-Sim
Kim Kwang-kyu
Kim Kong-Sook
Jung Dong-Hwan
Seo Dae-Seok
Kim Ga-eun
Ko Sung-Bin
Kim So-hyun
Jang Hye-Sung (young)
Goo Seung-hyun
Park Soo-Ha (young)
05. Episode 5
Hye Sung and Gwan Woo work together on the case involving the twins. Meanwhile, Min Joon Gook moves away.
Lee Bo-young
Jang Hye-Sung
Lee Jong-suk
Park Soo-Ha
Yoon Sang-hyun
Cha Kwan-Woo
Lee Da-hee
Seo Do-Yeon
Jung Woong-in
Min Joon-Kook
Kim Hae-sook
Eo Choon-Sim
Kim Kwang-kyu
Kim Kong-Sook
Jung Dong-Hwan
Seo Dae-Seok
Kim Ga-eun
Ko Sung-Bin
Kim So-hyun
Jang Hye-Sung (young)
Goo Seung-hyun
Park Soo-Ha (young)
06. Episode 6
Soo Ha tells Hye Sung that the twins planned the murder, therefore Hye Sung agrees to help Do Hyun prove the twins are guilty.
Lee Bo-young
Jang Hye-Sung
Lee Jong-suk
Park Soo-Ha
Yoon Sang-hyun
Cha Kwan-Woo
Lee Da-hee
Seo Do-Yeon
Jung Woong-in
Min Joon-Kook
Kim Hae-sook
Eo Choon-Sim
Kim Kwang-kyu
Kim Kong-Sook
Jung Dong-Hwan
Seo Dae-Seok
Kim Ga-eun
Ko Sung-Bin
Kim So-hyun
Jang Hye-Sung (young)
Goo Seung-hyun
Park Soo-Ha (young)
07. Episode 7
Cha Gwan Woo tells Hye Sung that he likes her and that they should date.
Lee Bo-young
Jang Hye-Sung
Lee Jong-suk
Park Soo-Ha
Yoon Sang-hyun
Cha Kwan-Woo
Lee Da-hee
Seo Do-Yeon
Jung Woong-in
Min Joon-Kook
Kim Hae-sook
Eo Choon-Sim
Kim Kwang-kyu
Kim Kong-Sook
Jung Dong-Hwan
Seo Dae-Seok
Kim Ga-eun
Ko Sung-Bin
Kim So-hyun
Jang Hye-Sung (young)
Goo Seung-hyun
Park Soo-Ha (young)
08. Episode 8
Hye Sung's mother is murdered and Gwan Woo is assigned to Min Joon Gook's case.
Lee Bo-young
Jang Hye-Sung
Lee Jong-suk
Park Soo-Ha
Yoon Sang-hyun
Cha Kwan-Woo
Lee Da-hee
Seo Do-Yeon
Jung Woong-in
Min Joon-Kook
Kim Hae-sook
Eo Choon-Sim
Kim Kwang-kyu
Kim Kong-Sook
Jung Dong-Hwan
Seo Dae-Seok
Kim Ga-eun
Ko Sung-Bin
Kim So-hyun
Jang Hye-Sung (young)
Goo Seung-hyun
Park Soo-Ha (young)
09. Episode 9
Unable to accept the verdict for Min Joon Gook's case, Soo Ha takes the matter into his own hands, but the consequences are far more severe than he or Hye Sung could have imagined.
Lee Bo-young
Jang Hye-Sung
Lee Jong-suk
Park Soo-Ha
Yoon Sang-hyun
Cha Kwan-Woo
Lee Da-hee
Seo Do-Yeon
Jung Woong-in
Min Joon-Kook
Kim Hae-sook
Eo Choon-Sim
Kim Kwang-kyu
Kim Kong-Sook
Jung Dong-Hwan
Seo Dae-Seok
Kim Ga-eun
Ko Sung-Bin
Kim So-hyun
Jang Hye-Sung (young)
Goo Seung-hyun
Park Soo-Ha (young)
10. Episode 10
Hye Sung finally reunites with Soo Ha after a year of no contact, only to find him suspect to a murder and a with serious case of amnesia.
Lee Bo-young
Jang Hye-Sung
Lee Jong-suk
Park Soo-Ha
Yoon Sang-hyun
Cha Kwan-Woo
Lee Da-hee
Seo Do-Yeon
Jung Woong-in
Min Joon-Kook
Kim Hae-sook
Eo Choon-Sim
Kim Kwang-kyu
Kim Kong-Sook
Jung Dong-Hwan
Seo Dae-Seok
Kim Ga-eun
Ko Sung-Bin
Kim So-hyun
Jang Hye-Sung (young)
Goo Seung-hyun
Park Soo-Ha (young)
11. Episode 11
Hye Sung and Gwan Woo work together again to help with Park Soo Ha's case.
Lee Bo-young
Jang Hye-Sung
Lee Jong-suk
Park Soo-Ha
Yoon Sang-hyun
Cha Kwan-Woo
Lee Da-hee
Seo Do-Yeon
Jung Woong-in
Min Joon-Kook
Kim Hae-sook
Eo Choon-Sim
Kim Kwang-kyu
Kim Kong-Sook
Jung Dong-Hwan
Seo Dae-Seok
Kim Ga-eun
Ko Sung-Bin
Kim So-hyun
Jang Hye-Sung (young)
Goo Seung-hyun
Park Soo-Ha (young)
12. Episode 12
Do Hyun and Gwan Woo both find evidence that Min Joon Gook may still alive.
Lee Bo-young
Jang Hye-Sung
Lee Jong-suk
Park Soo-Ha
Yoon Sang-hyun
Cha Kwan-Woo
Lee Da-hee
Seo Do-Yeon
Jung Woong-in
Min Joon-Kook
Kim Hae-sook
Eo Choon-Sim
Kim Kwang-kyu
Kim Kong-Sook
Jung Dong-Hwan
Seo Dae-Seok
Kim Ga-eun
Ko Sung-Bin
Kim So-hyun
Jang Hye-Sung (young)
Goo Seung-hyun
Park Soo-Ha (young)
Kim Mi-kyeong
Jeon Young-Ja
13. Episode 13
Attorney Shin asks for Hye Sung's help with Hwang Dal Joong's case.
Lee Bo-young
Jang Hye-Sung
Lee Jong-suk
Park Soo-Ha
Yoon Sang-hyun
Cha Kwan-Woo
Lee Da-hee
Seo Do-Yeon
Jung Woong-in
Min Joon-Kook
Kim Hae-sook
Eo Choon-Sim
Kim Kwang-kyu
Kim Kong-Sook
Jung Dong-Hwan
Seo Dae-Seok
Kim Ga-eun
Ko Sung-Bin
Kim So-hyun
Jang Hye-Sung (young)
Goo Seung-hyun
Park Soo-Ha (young)
Kim Mi-kyeong
Jeon Young-Ja
14. Episode 14
Hye Sung debates on whether to tell Do Hyun about her birth parents.
Lee Bo-young
Jang Hye-Sung
Lee Jong-suk
Park Soo-Ha
Yoon Sang-hyun
Cha Kwan-Woo
Lee Da-hee
Seo Do-Yeon
Jung Woong-in
Min Joon-Kook
Kim Hae-sook
Eo Choon-Sim
Kim Kwang-kyu
Kim Kong-Sook
Jung Dong-Hwan
Seo Dae-Seok
Kim Ga-eun
Ko Sung-Bin
Kim So-hyun
Jang Hye-Sung (young)
Goo Seung-hyun
Park Soo-Ha (young)
Kim Mi-kyeong
Jeon Young-Ja
15. Episode 15
Do Hyun agrees to take a DNA test for Hwang Dol Joong's case.
Lee Bo-young
Jang Hye-Sung
Lee Jong-suk
Park Soo-Ha
Yoon Sang-hyun
Cha Kwan-Woo
Lee Da-hee
Seo Do-Yeon
Jung Woong-in
Min Joon-Kook
Kim Hae-sook
Eo Choon-Sim
Kim Kwang-kyu
Kim Kong-Sook
Jung Dong-Hwan
Seo Dae-Seok
Kim Ga-eun
Ko Sung-Bin
Kim So-hyun
Jang Hye-Sung (young)
Goo Seung-hyun
Park Soo-Ha (young)
16. Episode 16
Hye Sung learns about Soo Ha's father involvement with Min Joon Gook.
Lee Bo-young
Jang Hye-Sung
Lee Jong-suk
Park Soo-Ha
Yoon Sang-hyun
Cha Kwan-Woo
Lee Da-hee
Seo Do-Yeon
Jung Woong-in
Min Joon-Kook
Kim Hae-sook
Eo Choon-Sim
Kim Kwang-kyu
Kim Kong-Sook
Jung Dong-Hwan
Seo Dae-Seok
Kim Ga-eun
Ko Sung-Bin
Kim So-hyun
Jang Hye-Sung (young)
Goo Seung-hyun
Park Soo-Ha (young)
Kim Mi-kyeong
Jeon Young-Ja
17. Episode 17
Min Joon Gook lures Hye Sung into his trap by lying that he kidnapped Soo Ha.
Lee Bo-young
Jang Hye-Sung
Lee Jong-suk
Park Soo-Ha
Yoon Sang-hyun
Cha Kwan-Woo
Lee Da-hee
Seo Do-Yeon
Jung Woong-in
Min Joon-Kook
Kim Hae-sook
Eo Choon-Sim
Kim Kwang-kyu
Kim Kong-Sook
Jung Dong-Hwan
Seo Dae-Seok
Kim Ga-eun
Ko Sung-Bin
Kim So-hyun
Jang Hye-Sung (young)
Goo Seung-hyun
Park Soo-Ha (young)
18. Episode 18
Min Joon Gook promises to tell his whole story if Gwan Woo agrees to become his defense attorney again.
Lee Bo-young
Jang Hye-Sung
Lee Jong-suk
Park Soo-Ha
Yoon Sang-hyun
Cha Kwan-Woo
Lee Da-hee
Seo Do-Yeon
Jung Woong-in
Min Joon-Kook
Kim Hae-sook
Eo Choon-Sim
Kim Kwang-kyu
Kim Kong-Sook
Jung Dong-Hwan
Seo Dae-Seok
Kim Ga-eun
Ko Sung-Bin
Kim So-hyun
Jang Hye-Sung (young)
Goo Seung-hyun
Park Soo-Ha (young)