Inaindha Kaigal

A cunning criminal who funds the conflict by supplying sub-standard medicines to the Indian Army. He enlists Pratap to retrieve Gunasekaran and manipulates events from the shadows, driving the plot's conflict.

An orphan who becomes entwined with David and discovers she is pregnant. She travels toward Chennai, glimpses David, and ultimately dies giving birth to their son, adding a personal tragedy to the mission.

A former secret mission operative who returns to action for a patriotic rescue. He connects with Chandralekha and joins forces with Pratap to save Gunasekaran, risking himself for the mission.

A clever, industrious criminal hired to fetch Gunasekaran who later becomes an ally to David. He harbors a personal vendetta linked to his father and ultimately vows to protect Gunasekaran.

An army doctor under house arrest for treason, she is Gunasekaran's mother and a catalyst for the rescue. She is later blacklisted due to the medicines scandal but remains committed to her cause and her son.

A photographer who captures military scenes and holds crucial evidence in the black-box. His capture and the knowledge he possesses drive the action and eventual revelations in the story.

A woman associated with Pratap whom he falls in love with during the mission, adding a personal complication to the pursuit.

A caretaker who helps Julie navigate social service routes and reaches Chennai, playing a small but pivotal supportive role.