Josh Boone Director, Screenwriter Allison Williams Morgan Grant Actor, Executive Producer Mckenna Grace Clara Grant Actor, Executive Producer Dave Franco Jonah Sullivan Actor, Executive Producer Mason Thames Miller Adams Actor Sam Morelos Lexie Actor Scott Eastwood Chris Grant Actor Willa Fitzgerald Jenny Davidson Actor Clancy Brown Hank "Gramps" Adams Sr. Actor Ethan Costanilla Efren Actor Susan McMartin Screenwriter Brunson Green Producer Anna Todd Producer Flavia Viotti Producer Robert Kulzer Producer Oliver Berben Executive Producer Colleen Hoover Executive Producer, Executive Producer, Executive Producer, Executive Producer, Executive Producer Jon D. Wagner Executive Producer Emily Magee Executive Producer Samuel Hall Executive Producer Warren Goz Executive Producer Brittany Hites Production Design Nicholas Urbano Set Decoration Erinn Knight Costume Design Nancy Nayor Casting