Jezelle Catherine as Lucia Malfoy.
"They're as stuck-up as Sirius with their hair,"
"You're a werewolf"
Andrew Garfield as Remus Lupin
"What are you going to do?Tell the others?"
Ben Barnes as Sirius Black
"I have a suggestion.what about meme team?"
"Because I'm a star?"
Aaron Taylor Johnson as James Potter
"I think I like Lily Evans,"
"You can't be serious?"
Thomas Brodie-Sangster as Peter Pettigrew.
"My ears are dead,"
Meg DeLacy as Marlene McKinnon
"How did you do that?"
Cierra Ramirez as Mary McDonald
"You need to teach me how to do that!"
Claire Danes as Emma Vanity
"I'm the only female first year in Slytherin,Of course I'm going to be prefect."
Lily James as Aanya Diggory
"Perfect child?Not me that's Amos,"
"I'll come with you!"
Jenna Coleman as Hestia Jones
"That.is.genius,"
Sophie Skelton as Lily Evans
"I'll go out with you when pigs fly!"
Jason Isaacs as Lucius Malfoy
"Are you ok?Like seriously?Is something wrong with your head?"
"She looks just like us."
Helena Bonham Carter as Bellatrix Black/Lestrange
"Blood-traitor?That you are,"
Helen McCrory as Narcissa Black/Malfoy
"And do enlighten us as to how to do that,"
"Oh,". "I have given birth."
Other notable characters....
Seraphina Avery
Seselina Avery
Josephine Avery
Natalie Malfoy
Miranda Wood
All other characters are portrayed by their actors in the Harry Potter movies.