What are the characters names in the dead and the gone?

In "The Dead and the Gone" by Susan Beth Pfeffer, the main characters include Alex Morales, a high school student who takes on the responsibility of caring for his younger sisters, Julie and Briana. The story unfolds in a post-apocalyptic setting, focusing on their struggles for survival in a world devastated by a catastrophic event. Other significant characters include their parents, who are absent during the crisis, highlighting the challenges faced by the siblings.