Ben Barnes as Sirius Black.

Alicia Vikander as Marlene Mckinnon.

Aaron Taylor Johnson as James Potter.

Sophie Skelton as Lily Evans.

Andrew Garfield as Remus Lupin.

Lily Collins as Mary Mcdonald.

Timothee Chalamet as Regulus Black.

Sarah Gadon as Narcissa Black.

Katie McGrath as Bellatrix Black.

Kira Knightly as Andromeda Black.

Dane Dehaan as Peter Pettigrew.

Louis Garrel as Severus Snape.