IN WHICH we find out that the Ministry are dumbasses

OLD HARRY POTTER CAST AS THEMSELVES:

NEW CAST MEMBERS! 

Gary Oldman as Sirius Black:

"He's- He's James' and Lily's child, and you and Rosie's child, Remus? Harry and Aubery? They've grown so much."

Timothy Spall as Peter Pettigrew.

"Sirius? Remus? My old friends!"