Jason Voorhees is a fictional character from the horror film franchise, "Friday the 13th." He is the main antagonist of the series and is known for his iconic hockey mask and machete. According to the films, Jason drowned as a child in Camp Crystal Lake due to negligence on the part of the camp counselors. He then returns as an undead serial killer, seeking revenge on those who cross his path.

Throughout the series, Jason has been portrayed as an unstoppable force of nature, slaughtering anyone who dares to venture into his territory. His trademark machete and hockey mask have become symbols of terror in popular culture, making him one of the most recognizable movie villains of all time.

Despite being a fictional character, Jason Voorhees has a dedicated fanbase and has appeared in various forms of media, including comic books, video games, and merchandise. His legacy continues to inspire horror fans around the world to this day.