Harshi Rasanga Rathugamage was born on August 18, 2003, in Sri Lanka. She belongs to the Sinhala community and follows Buddhism. She speaks Sinhala and English and studied at Ananda Balika Vidyalaya, Kotte. Harshi entered the entertainment industry at a young age and became active in Sinhala television and cinema. She is active on Instagram under the username sheetah.official_, where she has over 195K+ followers. On TikTok, she is active as sheetah.official with over 270K+ followers and more than 4.6M+ likes.
Harshi Rasanga made her acting debut in the Sinhala movie Sujatha Puthra released in 2016. She later appeared in films including Udumbara in 2018 and Abhisheka in 2023. In television, she acted in teledramas such as Thadhee, Number 9, Lanvee, Hadawathe Kathawa, Husmak Tharamata, and Rajiniyo. Her performances in Sinhala teledramas helped her gain popularity among younger audiences. Alongside acting, Harshi has also built a strong social media presence through modeling, fashion-related content, and entertainment collaborations.
In her personal life, Harshi often shares moments related to fashion, beauty, travel, and lifestyle on social media. Her online content reflects her interest in entertainment and creative media work. Publicly available reports also indicate that she recently got engaged.