Growing up in Greenville, Texas, Bart Millard suffers physical and emotional abuse at the hands of his father, Arthur. When Arthur becomes terminally ill, he finds redemption by embracing his faith and rediscovering his love for his son. Years later, Bart's troubled childhood and mended relationship with his dad inspires him to write the hit song "I Can Only Imagine" as singer of the Christian band MercyMe.
J. Michael Finley
as Bart Millard
Dennis Quaid
as Arthur
Cloris Leachman
as Memaw
Brody Rose
as Young Bart
Madeline Carroll
as Shannon
Gianna Simone
as Dr. Avondale
Kevin Downes
as Singleton
Jason Burkey
as Mike
Rhoda Griffis
as Jen
Tanya Clarke
as Adele
Nicole DuPort
as Amy Grant
Priscilla C. Shirer
as Mrs. Fincher
