Casey Affleck as Donnie Emerson

Walton Goggins as Joe Emerson

Zooey Deschanel as Nancy

Beau Bridges as Don Emerson Sr.

Chris Messina as Matt Sullivan

Noah Jupe as Young Donnie Emerson

Jack Dylan Grazer as Young Joe Emerson

Katy Cavanagh as

Mellanie Hubert as Mandy

Maeve Campbell as Teenage Rose

McKenna Ralston as Lindsay

Doug Dawson as Dion

Rich Morris as Steven Kurutz

Brandon O'Neill as Hal Latham

Elizabeth O'Brien as Heidi

Faith Clark Doebler as Bar Patron

Lowell Deo as Radio Host

Jhon Goodwin as Clyde Bundy

Cari Wilton as Rose

Barbara Deering as Salina Emerson

Richard Sloniker as Banker

Carlos L. Fox as Carlos

Lauren Megan McCarthy as Brenda Mae

Claire Yarber as Avea Emerson

Aimee Paxton as Sarah Contest Winner

Carson Verity as Lorna

Bonni Dichone as Carol

Ian Wells as Singer

Darcy Else as Teen Maria

Callan Spafford as Eldon Kemmerer

Charles Charlebois as Chance Emerson

Michael McCarthy as Taxi Driver

Mike D Harris as Bar Patron / Concert Attendee

Frank A. Gaimari as Bar Patron

Ryan Chen as Darrel (Partygoer 2)

Matt Rindge as Video Crew

Rosie Huddleston as Receptionist

Amandaree Fox as Maria

Ilan Hernandez as Dance Attendee (uncredited)

Dave Johnson as Bar Patron (uncredited)

Ashleigh Oswalt as Concert Attendee (uncredited)

Kayla Jade Adeniran as Party Girl (rumored)