Lokesh Kanagaraj and Anirudh Ravinchander - both in their peak - have also contributed immensely. Yet, the breakout star of Coolie's success is an unassuming Malayali actor, who outshone, outacted, and even outdanced everyone in the film. Soubin Shahir is earning heavy praise for his performance in the film, with most calling him the film's breakout star.
Who is Soubin Shahir?To anyone familiar with Malayalam cinema, Soubin is not a new name or face. The actor-filmmaker was somewhat of a late bloomer, beginning as an assistant director to Fazil, Siddique, Rafi-Mecartin, P. Sukumar, Santhosh Sivan, Rajeev Ravi, and Amal Neerad in the 2000s. It wasn't until he was 30 that Soubin made his full-fledged acting debut with Annayum Rasoolum. Two years later, he had his breakthrough in Malayalam cinema with Premam. His first lead role in Sudani from Nigeria, which won him the Kerala State Film Award for Best Actor, came when he was 34. In 2017, he made his directorial debut with Parava.

Soubin earned mainstream popularity outside Kerala with his starring roles in Kumbalangi Nights and Manjummel Boys. The latter became the highest-grossing Malayalam film ever. His performance was regarded as one of the "100 Greatest Performances of the Decade" by Film Companion. With Manjummel Boys, he also turned producer for the first time. Coolie marked his first full-length role appearance in Tamil cinema. He had done a cameo in the 2017 film, Solo. But it was Coolie that allowed him to reach out to pan-India audiences in a big way.
Soubin Shahir's role in CoolieCoolie is the story of Rajinikanth's Deva, a retired coolie who investigates his friend's death and gets embroiled in the criminal activities of a gangster named Simon (Nagarjuna). Soubin plays Dayal, a henchman of Simon and an unpredictable character whose loyalties lie only with himself. The character has become a fan favourite, with Soubin winning praise for his performance as well. On social media, he is being called the 'scene-stealer', no mean feat in a Rajinikanth film that also has Nagarjuna, Upendra, and Aamir Khan.