Character details.
Story starts in October 2009
Name: Sophia Rose Callahan (portrayed by Jamie Lynn Spears)
Age: 19 (July 23, 1989)
Lives near older sister, Alexis, in LA.
Name: Zachary David Alexander Efron
Or better known as Zac Efron.
Age: 21 (October 18, 1987)
He lives in LA, too. You know about him, hopefully.