Marg Helgenberger
Hannah Montgomery
Betty Gilpin
Gloria Mitchell
Henry Lau
Trent
Kathryn Prescott
Clarity June "CJ" Mitchell
Dennis Quaid
Ethan Montgomery
Josh Gad
Bailey / Molly / Big Dog / Max (voice)
Abby Ryder Fortson
Young CJ
Emma Volk
Toddler CJ
Ian Chen
Young Trent
Jake Manley
Shane
Johnny Galecki
Henry Montgomery
Tyler Asher Xin-Qin
Saint
Beckett Richard Pin
15-Month-Old Saint
Daniela Barbosa
Liesl
Kevin Claydon
Barry
Arlene Duncan
Hilda
Cherissa Richards
Joan
Kenneth Liu
Trent's Dad
Stefanie Wiens
Angela Narth
Old Woman
Sally Shepard
Tour Bus Ticket Taker (uncredited)
Conrad Coates
Big Joe