Jason Blossom is a fictional character from the television series Riverdale, which is based on the Archie Comics. He is portrayed as a popular high school student and a member of the wealthy Blossom family. His character plays a central role in the show's mystery, as his sudden disappearance and subsequent death set off a chain of events that impact the lives of the other characters. In the series, Jason is depicted as having a close relationship with his twin sister, Cheryl Blossom. His death reveals dark secrets about the Blossom family and the town of Riverdale, making him a pivotal figure in the unfolding drama.