The “brilliant boy” who stole the show alongside Vijay Sethupathi in the 2026 Tamil comedy-drama Baththa is child actor Master Sai Prithviraj, also credited as Sai Prithiv Raj. He plays Sabari, a timid eight-year-old schoolboy who accidentally locks a feared, short-tempered local gangster named Baththavachalam inside a deserted school restroom in 1986 Madras. What unfolds from that simple premise is an unlikely friendship that has become the emotional core of one of the year’s most celebrated sleeper hits, and at the centre of it all is a performance that critics and audiences alike are calling extraordinary.
The young actor’s performancehas become a massive talking point, with reception highlighting several exceptional aspects of his role. Critics and audiences have universally pointed out that Sai Prithviraj doesn’t feel like a typical child actor simply reciting memorized dialogues—his silence, subtle facial expressions, and wide-eyed innocence make his performance remarkably grounded and believable. One of the most talked-about highlights of the film is a highly emotional pre-climax scene filmed in a single continuous shot, where the young boy delivers a mind-blowing, emotionally heavy performance that has left viewers stunned. Sharing the screen with a powerhouse performer like Vijay Sethupathi is a massive challenge, but the duo’s natural on-screen dynamic forms the absolute backbone of the movie—the contrast between Sethupathi’s rough, vulnerable gangster and the boy’s innocent perspective provides incredible situational humour and heartwarming warmth.
The reception has been so strong that prominent filmmakers, including director Shankar, have publicly praised the film, stating that Sai Prithviraj genuinely deserves a National Film Award for his performance. Such endorsements from industry veterans are rare for child actors, and they underscore just how deeply the young performer has connected with audiences. Directed by Balaji Tharaneetharan and produced by Atlee, Baththa has emerged as a major critical sleeper hit, with the film’s success built substantially on the shoulders of its two leads and their unforgettable chemistry.
For those looking to rewatch or catch up on the incredible dynamic between Vijay Sethupathi and Master Sai Prithviraj, Baththa is currently available for streaming globally on Netflix. Whether you’re drawn by the film’s unique premise, the nostalgic 1986 Madras setting, or the viral buzz surrounding its young star, the film offers a viewing experience that justifies every bit of the acclaim it has received—and introduces audiences to a child actor whose career is now one to watch with great anticipation.
