Jesse Tuck is a fictional character from the novel "Tuck Everlasting" by Natalie Babbitt. He is a young man who is part of the Tuck family, who gained immortality after drinking from a magical spring. Jesse is portrayed as adventurous and carefree, embodying the spirit of youth. Throughout the story, Jesse struggles with the implications of eternal life. He wishes to share the secret of immortality with Winnie Foster, a girl he befriends, but he also understands the potential consequences of living forever. His character raises questions about life, death, and the natural cycle of existence.