<Tr> <Th> Written by </Th> <Td> Park Hye - ryun </Td> </Tr> <Tr> <Th> Directed by </Th> <Td> Jo Soo - won </Td> </Tr> <Tr> <Th> Starring </Th> <Td> Lee Bo - young Lee Jong - suk Yoon Sang - hyun Lee Da - hee </Td> </Tr> <Tr> <Th> Opening theme </Th> <Td> "Echo" by Every Single Day </Td> </Tr>

Cast of i hear your voice korean drama