Who are the characters in Radiance by Alyson noel?

In "Radiance" by Alyson Noel, the main character is Riley Bloom, a young girl who has recently died and is navigating the afterlife. Other key characters include her loyal dog, Buttercup, and her mentor, Bodhi, who helps her understand her new existence. Additionally, Riley's journey involves encounters with various souls, both troubled and at peace, which shape her understanding of life and death. The story explores themes of growth, acceptance, and the importance of helping others.