Callie Woodland is a 16-year-old Starter who lost her parents during the Spore Wars and looks after her younger brother, Tyler. She witnessed her mother’s health decline and death. Then, her father was taken away to a quarantine facility. Callie is headstrong and thoughtful with survival skills. She excels in weaponry, particularly using guns, due to her father’s instruction in case she and Tyler needed to survive on their own. She thinks her decisions through carefully. Because of her life on the streets as an unclaimed minor, Callie missed a lot of her childhood and been forced to act as both a parent and sister to Tyler. She is always concerned about his well-being. Callie adapts quickly to new situations, like pretending to be someone else pretending to be her, pivoting to act as though she’s just a rich Starter, and even modifying her mindset to get through an existence worse than she’s ever known when she’s incarcerated at Institution 37.

Tyler Woodland is a seven-year-old Starter. He’s Callie’s younger brother and has a serious lung condition. He is very close with Callie and attached to the few memories he has of their family together. He is adept at living life on the run and mostly listens to the older figures in his life, like Callie, Michael, and Florina.