Whitney is Daniel's younger/only sister, and Audrey's future sister (hooray!). She will be Audrey's woman of honor.
Alex was Daniel's college roommate for 3 years, two on purpose. He will be Daniel's best man.
Jessica is Audrey's younger sister. She works with kids, does jujitsu, and has basically never had an unkind thought.
Catherine is Audrey's sister and is very slightly younger than Jessica. She is a nurse, and she thinks you look nice today.
Jamie is Audrey's youngest and tallest sister. Audrey tried not to pick on her too much.
Jeremy is Daniel's older/only/most-educated brother. He only ever beat Daniel up a little bit.
Kelley is Daniel's friend from college and a fellow member of the Professional Organization of English Majors.
Luke is Audrey's youngest brother. He's in college now, but he was 8 when Audrey and Daniel started dating. Seriously.
Craig is Audrey's older brother, and the father of Audrey's first nephew. He only picked on Audrey every once in a while.
Toby is Audrey's tallest brother, and the closest sibling to her in age. He picked on Audrey constantly.