Stories from the set

In the 2012 interrogation scenes of Cole and Hart, the detectives use a SONY NEX5 digital camera to record the testimony. This camera is not designed for continuous video recording longer than 10-15 minutes — the camera's sensor overheats and it switches off automatically. In addition, the camera's battery would not have lasted for the amount of operating time shown in the interrogation scenes.

In episode 7, in the scene where Rust questions the former housekeeper, he holds her hand with his right hand. After the angle changes, in one of the shots Rust's right hand is visible, but it is not holding anything. Then, when Rust and Marty are sitting and drinking beer in the bar, the label on the bottle moves with every shot.

In season 1, episode 4, at the 15th minute, Marty watches a stripper who drives a Subaru Legacy Lancaster with the BH body style. The Subaru with this body style has been produced since 1998, while the film is set in 1995.

Sadarias Harrell gained 21 kilograms for the role of Detective Drew.

The first season was filmed on the coastal plains of southern Louisiana, where its story also takes place.

During the broadcast of the first season's finale, due to the huge number of requests, the streaming service HBO Go could not handle the load.

Matthew McConaughey starred in three commercials for the Lincoln MKC advertising campaign, in character as his protagonist from the series «True Detective» (2014). The commercials were directed by Nicolas Winding Refn.

Work on the series «True Detective» began in April 2012.

Louisiana, the state where «True Detective» is set, is also the home state of the series' writer, Nic Pizzolatto.

One of the title options for the series was "Murder Ballads".