Kit Sebastian Connor, born on March 8, 2004, is an English actor who has rapidly ascended to international prominence through his compelling performances across film, television, and stage. He is best known for his breakout role as Nick Nelson in the Netflix teen series Heartstopper, a performance that earned him the inaugural Children's and Family Emmy Award for Outstanding Lead Performance and cemented his status as a rising star in the entertainment industry.

Connor began his acting career at a young age, making his feature film debut in the 2014 holiday comedy Get Santa and appearing in the CBBC series Rocket's Island from 2014 to 2015. He demonstrated early versatility by taking on voice roles, including a part in the acclaimed fantasy series His Dark Materials from 2019 to 2022. He also appeared in the biographical musical film Rocketman, portraying the young version of Elton John, and starred in the science fiction drama Little Joe, both released in 2019. His voice work continued to expand with a role in the animated film The Wild Robot in 2024, for which he received an Annie Award nomination.

Connor's career-defining moment arrived with his casting as Nick Nelson in Heartstopper, a beloved adaptation of the graphic novels by Alice Oseman. The series, which premiered in 2022, follows the romance between two British schoolboys and was praised for its heartfelt portrayal of LGBTQ+ relationships. Connor's nuanced performance as a popular rugby player navigating his bisexuality resonated deeply with audiences worldwide, earning him critical acclaim and a dedicated fanbase. He will reprise the role in the series' upcoming finale film. In 2024, he expanded his theatrical range by starring as Romeo in a Broadway adaptation of Romeo & Juliet, a performance that won him a Theatre World Award and earned nominations for a Drama League Award and an Outer Critics Circle Award. He further showcased his dramatic abilities in the 2025 war film Warfare, for which he won a British Independent Film Award.

Beyond his acting accolades, Connor continues to be a prominent figure in contemporary entertainment, balancing high-profile streaming projects with prestigious stage work. His ability to transition seamlessly between intimate dramas, animated features, and live theater underscores his growing reputation as one of the most talented actors of his generation.