According to Hwadam Pictures, the actor is set to make his comeback in a drama currently titled 'Mister Sunshine'. The drama is a series written by renowned screenwriter Kim Eun Sook who wrote 'Goblin', 'Descendants of the Sun', and 'Secret Garden'. In an interview with Kim Eun Sook, she stated, "The story is written with the backdrop of the 1900s to commemorate soldiers who've fought, but were not recognized for their service historically."
Additionally, Director Yoon Ha Lim said, "For this drama, there is much preparation to be done. It's not a pre-produced series; however, to produce a high quality drama, we will be taking some time filming and that is why we wanted to get the casting finalized as soon as possible. Also, screenwriter Kim made a special request for the main male character. She wanted someone who could act well and speak English fluently. Therefore, we believed that Lee Byung Hun was the best pick to play this role."
Lee Byung Hun is widely known for his role in 'Iris' and has featured in various Hollywood movies such as 'G.I. Joe: Retaliation', 'G.I. Joe: The Rise of the Cobra', and 'The Magnificent Seven'.