TEENS:
Fionn Whitehead or Benedict Clarke as Severus Snape
Annalise Basso or Ellie Darcey-Alden as Lily Evans
Charlie Gillespie as James Potter
Harry Styles as Sirius Black
Nick Robinson as Remus Lupin
Tom Holland as Peter Pettigrew
Thomasin McKenzie as Marlene Harriet McKinnon
Alisha Boe as Mary Macdonald
Chloe Grace Moretz as Bellatrix Black
Eleanor Worthington-Cox as Narcissa Black
Finn Cole as Lucius Malfoy
ADULTS:
Aaron Taylor Johnson as James Potter
Andrew Garfield as Remus Lupin
Kirsten Dunst as Lily Evans-Potter
Jack Davenport or Benedict Cumberbatch as Severus Snape
Aidan Turner as Sirius Black
Jamie Bell as Peter Pettigrew
Alicia Vikander as Marlene Harriet McKinnon
Chloe Grace Moretz and Elizabeth Olsen as Bellatrix Black-Lestrange
David Anders as Lucius Malfoy
Emma Stone as Narcissa Black-Malfoy