Hanna is the title character of the 2011 action thriller film "Hanna," played by Saoirse Ronan. Hanna is a 16-year-old girl who has been raised in isolation by her father, Erik Heller (played by Eric Bana), in the wilderness of northern Finland. Erik is a former CIA operative who has trained Hanna to be an assassin, and as the film begins, she is sent on a mission to kill a ruthless CIA agent named Marissa Wiegler (played by Cate Blanchett).

Hanna is portrayed as an intelligent, resourceful, and highly skilled fighter, able to take down trained adult assassins with ease. She is also shown to have a deep curiosity about the world outside of her isolated upbringing, and an eagerness to explore and learn new things.

Throughout the film, Hanna is on a journey of self-discovery, trying to understand who she is and where she came from. As she evades the CIA agents pursuing her, she begins to uncover the truth about her own identity and her connection to Marissa Wiegler. This journey leads her on a path of personal growth and emotional development, as she learns to trust others and confront the traumatic events of her past.

Hanna's character is unique in the action genre, as she is a female lead who is not sexualized or objectified in any way. Instead, she is portrayed as a fully realized and complex individual, with a rich internal life and a sense of agency over her own actions. Her character has been praised for its feminist elements, and Ronan's performance as Hanna has been widely acclaimed for its nuance and emotional depth.