Suggestions by @rubywallace25

Joe Dempsie

as Lamb in Carry On

Narges Rashidi

as Fiona Pitch in Carry On

Imogen Poots

as Lucy Salisbury in Carry On

Tyrel Jackson Williams

as Shepard in Carry On

Michael Sheen

as The Mage in Carry On

Amiee Lou Wood

as Agatha Wellbelove in Carry On

Simone Ashley

as Penelope Bunce in Carry On

Chris Jenks

as Simon Snow in Carry On

Jessica Sula

as Emmeline Vance in The Marauder's Era

Harry McEntire

as Peter Pettigrew in The Marauder's Era

Tanya Reynolds

as Alice Fortescue in The Marauder's Era

Callum Scott Howells

as Remus Lupin in The Marauder's Era

Hero Fiennes Tiffin

as Sirius Black in The Marauder's Era

Tuppence Middleton

as Bellatrix Black in The Marauder's Era

Louis Hynes

as Regulus Black in The Marauder's Era

Olivia Cooke

as Marlene Mckinnon in The Marauder's Era

Tuppence Middleton

as Andromeda Black in The Marauder's Era

Anya Taylor-Joy

as Narcissa Black in The Marauder's Era

Lara Pulver

as Walpurga Black in All the Young Dudes

Joanna Lumley

as The Master in Doctor Who: Season 27 (1990)