J. Michael Finley

Bart Millard

Dennis Quaid

Arthur

Cloris Leachman

Memaw

Brody Rose

Young Bart

Madeline Carroll

Shannon

Gianna Simone

Dr. Avondale

Kevin Downes

Singleton

Jason Burkey

Mike

Rhoda Griffis

Jen

Tanya Clarke

Adele

Priscilla C. Shirer

Mrs. Fincher

Taegen Burns

Young Shannon

Trace Adkins

Brickell

Mark Furze

Nathan

Randy McDowell

Jim

J.R. Cacia

Rusty

Samuel Sadovnik

Young Kent

Kerry McCormick

Nurse

David Norona

Bill Layton

Jake B. Miller

Michael W. Smith