Maid of Honor
Casey's middle sister and first partner in crime
Best Man
Louis' college friend and adventure buddy
Bridesmaid
Casey's youngest sister, aka Queen Elsa
Groomsman
Louis' oldest brother and father of Louis' 4 niblings
Bridesmaid
Casey's high school friend and fellow boy-bandmate
Groomsman
Louis' middle brother and Chief Arborist
Bridesmaid
Casey's Chicago roommate and the life of the party
Groomsman
Louis' college friend and surfing instructor
Bridesmaid
Casey's childhood friend and JB1
Groomsman
Louis' Chicago friend and musical coordinator
Bridesmaid
Casey's college friend, sorority sister, and musical-afficionado
Groomsman
Louis' college friend and handsome co-subject in the first photo of Louis seen by Casey