Coba jelasin Pemeran dari I Saw the Light (film) dong

Tom Hiddleston sebagai Hank Williams

Elizabeth Olsen sebagai Audrey Sheppard Williams, Hank's wife, manager, and duet partner

Cherry Jones sebagai Lillie Skipper Williams, Hank's mother

Bradley Whitford sebagai Fred Rose, co-owner of Acuff-Rose song publishing in Nashville, who produced Hank's records and co-wrote several songs with Hank

Maddie Hasson sebagai Billie Jean, a 19-year-old pursued by Hank after his divorce from Audrey and eventually becomes his second wife and widow.

Wrenn Schmidt sebagai Bobbie Jett, had a short relationship with Hank after his divorce from Audrey. She gave birth to their daughter, Jett Williams

David Krumholtz sebagai James Dolan, a New York journalist

Josh Pais sebagai Dore Schary, a movie director, producer and former head of MGM Studios

James DuMont sebagai WB Nolan, a music promoter and small-town mayor

Casey Bond sebagai Jerry Rivers

Michael Rinne sebagai Lum York, bass player in Hank's band, Drifting Cowboys

Joshua Brady sebagai Sammy Pruett, lead guitarist in Hank's band, Drifting Cowboys

Wes Langlois sebagai Don Helms, steel guitarist in Hank's band, Drifting Cowboys

Von Lewis sebagai Ray Price, a Country singer and roommate of Hank Williams

Fred Parker Jr. sebagai Faron Young

Rob Boltin sebagai Frank Walker, President of Hank's record label, MGM Records