Hannah Peters: Anne Hathaway

Christopher Peters: Eric Dane

Allen Roberts: Taye Diggs

Scarlett Johnson: Jennie Garth

Sister Grace: Ellen Burshteyn

Mother Superior: Maggie Smith

Ryan Dresden: Sage Suppa

Shanel: Tori Spelling

Randall/Scorpio: Bobby Cannavale

Caddie Hollingsworth: Rachelle Lefevre

Dr. Weller: Mary Chris Wall

Courtney Peters: Marlo Thomas

Ralph Peters: Eugene Robert Glazer

Julia: Jaclyn Jonet

Shannon: Jenn Proske

Lauren: Taylor Momsen

John: Tommy Kirk