'Voice 4' Releases New Posters + Everything We Now Know About 'Judgement Hour'
"Voice 4: Judgement Hour" New Cast Apart from the old cast members who have reprised their roles, there will be new ones joining in the fray. So far, the reported one is Song Seung-Heon, who will play the leading man this time. His acting portfolio is quite remarkable, starring in dramas such as "Black, "The Player," and "Dinner Mate," among others. He now makes the third leading man for the series, now entering its 4th season. For Season 4, Song will be playing Derek Jo, a detective with Los Angeles Police Department who lends his expertise to this South Korean emergency team.
Source: kdramastars.com