Suggestions by @jaidynalexander

Luke Evans

as Professor Snape in Harry Potter (HBO Max Series)

Stephen Fry

as The Sorting Hat in Harry Potter (HBO Max Series)

Chris O'Dowd

as Peeves the Poltergeist in Harry Potter (HBO Max Series)

Ian McShane

as The Bloody Baron in Harry Potter (HBO Max Series)

Julie Andrews

as Trolley Witch in Harry Potter (HBO Max Series)

Richard E. Grant

as Garrick Olivander in Harry Potter (HBO Max Series)

Celia Imrie

as Mrs. Figg in Harry Potter (HBO Max Series)

Jennifer Saunders

as Mrs. Figg in Harry Potter (HBO Max Series)

Lesley Manville

as Mrs. Figg in Harry Potter (HBO Max Series)

Tracey Ullman

as Mrs. Figg in Harry Potter (HBO Max Series)

Peter Dinklage

as Griphook in Harry Potter (HBO Max Series)

Warwick Davis

as Bogrod in Harry Potter (HBO Max Series)

Dev Patel

as Professor Quirrell in Harry Potter (HBO Max Series)

Dan Stevens

as Professor Quirrell in Harry Potter (HBO Max Series)

Ed Skrein

as Professor Quirrell in Harry Potter (HBO Max Series)

Nicholas Hoult

as Professor Quirrell in Harry Potter (HBO Max Series)

Rami Malek

as Professor Quirrell in Harry Potter (HBO Max Series)

Stephen Fry

as Tom the Innkeeper in Harry Potter (HBO Max Series)

Hugh Bonneville

as Uncle Vernon in Harry Potter (HBO Max Series)

Jim Carter

as Uncle Vernon in Harry Potter (HBO Max Series)