Acting Gangster is a Manga/Manhwa/Manhua in english language, Acting series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.nl fastest updating comic site. The Summary is

Tae Sung, a former gangster actor, accidentally switches places with real gangster Moon Gil. This set, filled with scary older brothers, has no script. No cuts. No NGs! Here, one mistake can cost you your life. Can Tae Sung survive among real gangsters?