A bored, retired rock star sets out to find his father's tormentor, an ex-Nazi war criminal who is a refugee in the U.S.

Sean Penn
as Cheyenne

Olwen Fouéré
as Mary's Mother

Eve Hewson
as Mary

Johnny Ward
as Steven

Sam Keeley
as Desmond

Danielle O'Brien
as Supermarket Girl #1

Margaret O'Reilly
as Supermarket Girl #2

Frances McDormand
as Jane

Mairin O'Donovan
as Old Lady in Bank

Simon Delaney
as Jeffrey