(Little Pictures, Showbox, CJ Entertainment)

Actors Park Sung-woong, Lee Jung-jae and Hwang Jung-min -- a trio who starred in the movie “New World” in 2013 -- are now competing for summer movie supremacy this year.

Park will appear in the movie “Office” as a detective who investigates the criminal case of an office worker who kills his entire family and disappears.

Park, formerly a villainous character in “New World,” is set to make a transition in his role in the new movie. “I used to take the role of charismatic characters doing severe action scenes, but this time, I decided to become a detective, Jong-hun, who is rather gentle,” he said.

Lee is currently starring in the “Assassination,” playing the role of Yeom Seok-jin and portraying both toughness as a chief and insecurity at the same time. Lee said, “I had to lose a lot of weight and had to stay awake for two days for the role.”

Hwang will appear as another detective, Seo Do-chul, in the movie “Veteran.” He said he studied every detail of detectives whom he actually met in order to naturally portray the role.

“Veteran” is set to premiere Wednesday, while “Office” will debut Aug. 27. “Assassination” got a head start, having already achieved an accumulated audience of more than 6 million viewers as of Tuesday.

By Lee Hye-won (hyewonlee@heraldcorp.com)