as Thulasi Raman: A strict physical education teacher known for his uncompromising integrity.

as Nandhini: A bubbly college student and kleptomaniac who provides the film's romantic interest. Karunakaran as Kanagu: A policeman and Sethu’s friend. Watch & Download Gethu 2016 year Full HD Movie Online

as Craig (Bull): A silent, deadly sniper who serves as the primary antagonist.

as Sethu Raman: A humble librarian who must transform into a fighter to save his family.

When Thulasi Raman, a teacher, is falsely accused of killing a man, his son Sethu, a librarian, sets out to find the real culprit. Airtel Xstream Gethu Movie Review | Udhayanidhi Stalin | Amy Jackson

The plot intertwines Sethu's quest for justice with a dangerous hitman named Craig (Vikranth), who has arrived in the foggy hill town of Kumily to assassinate a top Indian scientist. Despite its "mass" title—which suggests swagger or power in Chennai parlance—the movie is noted for its stylish visuals and slower, atmospheric pace. Cast and Key Characters

is a 2016 Indian Tamil-language action thriller that marked a stylistic departure for lead actor Udhayanidhi Stalin. Directed by Krish Thirukumaran, the film follows Sethu (Udhayanidhi Stalin), a librarian whose father, a righteous teacher named Thulasi Raman (Sathyaraj), is falsely accused of a high-profile murder.

The film features a mix of veteran actors and popular stars: