Mozhi

A talented young musician and keyboard player who falls for Archana. He is determined, patient, and learns sign language to communicate with Archana. His empathy drives the romance and his insistence on understanding her fears shapes the film’s emotional arc.

Karthik's best friend and witty partner in the music team. He provides humor and warmth, but also supports Karthik's quest for Archana's love. His own arc includes a budding romance with Sheela and a close bond with the apartment's residents.

A deaf and mute woman who lives with her grandmother and captivates Karthik with her strength and charm. She fears that her child could be disabled, which fuels her initial reluctance to accept a relationship. Her vulnerability, yet resilience, anchors the film's emotional core.

Archana's best friend and a widow who connects with Viji. She is supportive yet practical, navigating her own relationship and her late husband's memory. Her friendship with Archana and the budding romance with Viji are key emotional threads.

The irritable flat secretary who initially resists bachelors in the building. His comic misadventures and gradual warmth toward Karthik and Viji reflect the film's lighter side. He learns to value his new friends after witnessing the emotional moments around Gnanaprakasam's grief.

A professor whose mental state is shaken by the death of his son Babu in 1984. He lives in the past until Karthik helps him confront grief and move forward. His arc shows how loss can haunt a person and how friendship can guide healing.

A girl from one of the apartments who falls for Karthik's charm. She becomes the object of his affection before the Archana romance takes center stage. Her role adds a layer of comic and romantic tension.

A character serving as the film's voice for the on-screen performances, bringing a meta dimension to the music-centric world. His presence underscores the production side of cinema.