Marg Helgenberger ( Marg Helgenberger )

Hannah Montgomery

Betty Gilpin ( Betty Gilpin )

Gloria Mitchell

Henry Lau ( 헨리 )

Trent

Kathryn Prescott ( Kathryn Prescott )

Clarity June "CJ" Mitchell

Dennis Quaid ( Dennis Quaid )

Ethan Montgomery

Josh Gad ( Josh Gad )

Bailey / Molly / Big Dog / Max (voice)

Abby Ryder Fortson ( Abby Ryder Fortson )

Young CJ

Emma Volk ( Emma Volk )

Toddler CJ

Ian Chen ( Ian Chen )

Young Trent

Jake Manley ( Jake Manley )

Shane

Johnny Galecki ( Johnny Galecki )

Henry Montgomery

Tyler Asher Xin-Qin ( Tyler Asher Xin-Qin )

Saint

Beckett Richard Pin ( Beckett Richard Pin )

15-Month-Old Saint

Daniela Barbosa ( Daniela Barbosa )

Liesl

Kevin Claydon ( Kevin Claydon )

Barry

Arlene Duncan ( Arlene Duncan )

Hilda

Cherissa Richards ( Cherissa Richards )

Joan

Kenneth Liu ( Kenneth Liu )

Trent's Dad

Stefanie Wiens ( Stefanie Wiens )

Angela Narth ( Angela Narth )

Old Woman

Sally Shepard ( Sally Shepard )

Tour Bus Ticket Taker (uncredited)

Conrad Coates ( Conrad Coates )

Big Joe