Cassidy's story

Cassidy is a straight A student with brown hair, is 5' 8" tall, 15 years old, and has a difficult past.
Marvin is also a straight A student with blonde hair, is 4' 11", 12 years old, and shares Cassidy's past. Although since he is younger he remembers less of it.
Graci is the oldest who was also a straight A student, she has blonde hair, 5' 6" tall, is 25 years old, and does not share Cassidy and Marvin's past.