Cast of Manchester by the Sea

Casey Affleck portrays the protagonist, Lee Chandler, a janitor with a troubled past who becomes the guardian of his teenage nephew.

Lucas Hedges plays Patrick Chandler, Lee's nephew who is dealing with the recent loss of his father and leans on his uncle for support.

Michelle Williams takes on the role of Randi Chandler, Lee's ex-wife who tries to reconnect with him after a devastating event.

Kyle Chandler portrays Joe Chandler, Lee's brother and Patrick's father whose sudden passing sets off a chain of events in the story.

C.J. Wilson plays George, a friend of Joe and Lee who provides support during their difficult times.

Gretchen Mol portrays Elise Chandler, Joe's wife and Patrick's mother whose absence creates a void in the family dynamic.

Heather Burns plays Jill, a friend of Lee's who tries to offer him comfort and assistance in his time of need.

Ivy O'Brien portrays Young Patrick Chandler, offering glimpses into Patrick's past and his relationship with his father.

Josh Hamilton takes on the role of Wes, Joe's lawyer who assists Lee in navigating legal matters following Joe's passing.

Matthew Broderick plays Jeffrey, a friend who offers support and perspective to Lee during a challenging period in his life.

Tate Donovan portrays the Hockey Coach, a figure in Patrick's life who plays a role in his growth and development.

Anna Baryshnikov plays Sandy, a classmate of Patrick's who provides a different perspective and connection in his life.