Jonathan Carnahan is a fictional character from the Mummy film series, portrayed by actor John Hannah. He is the brother of Evelyn Carnahan and serves as a comic relief throughout the movies. Jonathan is known for his charming personality, quick wit, and occasional clumsiness, which often leads to humorous situations. In the films, Jonathan is an adventurous treasure hunter who assists his sister in uncovering ancient artifacts. His character adds depth to the story, showcasing themes of family loyalty and bravery as he faces supernatural challenges alongside Rick O'Connell and other characters.