<Li> Liam Hemsworth as Will Blakelee, a popular and skilled beach volleyball player, Will aspires to attend a top university and volunteers at the Georgia Aquarium . He is Ronnie's love interest . </Li> <Li> Greg Kinnear as Steve Miller, Ronnie and Jonah's father and former Juilliard School professor and concert pianist who moved to Georgia after his divorce . During the summer, Steve reconnects with Ronnie through their mutual love of music . With Jonah's help, Steve also works to reconstruct the centerpiece of the local church, a stained glass window, after the original was destroyed in a fire . He later dies of cancer . </Li> <Li> Kelly Preston as Kim Miller, Ronnie and Jonah's mother who raised her children in New York City after her divorce . </Li> <Li> Bobby Coleman as Jonah Miller, Ronnie's younger brother sent along with his elder sister to Tybee Island . </Li>

Who plays the mom in the last song