On Tuesday, the makers of Thalavan, directed by Jis Joy, released the trailer of the film. It stars Biju Menon and Asif Ali in the lead. The trailer opens with a voiceover about Asif's character being a straightforward guy, which Biju's character dismisses saying the former is beyond hope. Later, it is revealed that Asif is a subordinate police officer under Biju and conveys that soon they are at loggerheads with each other during an investigation. Thalavan promises to be a police procedural with a mystery element.

The film also stars an ensemble cast including Dileesh Pothen, Anushree, Miya, Kottayam Nazeer, Shankar Ramakrishnan, Joji K John, Dinesh, Anuroop, Nandan Unni and Bilas, among others. Penned by Sharath Perumbavoor and Anand Thevarakkattu, it is bankrolled by Arun Narayan and Sijo Sebastian under the banner Arun Narayan Productions in association with London Studios. 

Thalavan's technical crew includes cinematographer Sharan Velayudhan, editor Sooraj E S and music director Deepak Dev.