The film stars Vijay Yesudas[1][2][3] along with Jonita Doda, Rajiv Pillai, and Tanvi Kishore in important characters.

Hyderabad based Key Entertainments, ventures into movies with the ₹150 million production Salmon,[12] and the film shot in 3D is made in Tamil and dubbed in 6 Indian regional languages with a host of newcomers and noticed actors.

Multi-linguist actress Tanvi Kishore was also signed for the film, that has a total number of 42 songs including all the 7 languages.

A single from the Tamil version "Kaadhal En Kaviye" rendered by Sid Sriram released on 14 February 2021 and became popular.

[22][23][24] A critic from Samayam wrote that "Rahul Menon and S Selvakumar's camerawork, Sid Sriram's singing and special effects are the standout experiences of Salmon".