Suggestions by @nickienicks

Josh Gad

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

Zac Efron

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

Ian McKellen

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

Neil Patrick Harris

as The Fat Friar in Harry Potter (HBO Max Series)

Bill Nighy

as Nearly Headless Nick in Harry Potter (HBO Max Series)

Helen Mirren

as Trolley Witch in Harry Potter (HBO Max Series)

Eleanor Tomlinson

as Molly Weasley in Harry Potter (HBO Max Series)

Bill Skarsgård

as Garrick Olivander in Harry Potter (HBO Max Series)

Glenn Close

as Madame Malkin in Harry Potter (HBO Max Series)

Julie Andrews

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

Bill Hader

as Griphook in Harry Potter (HBO Max Series)

Peter Dinklage

as Bogrod in Harry Potter (HBO Max Series)

Willem Dafoe

as Professor Quirrell in Harry Potter (HBO Max Series)

Josh Brolin

as Sturgis Podmore in Harry Potter (HBO Max Series)

Patrick Stewart

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

Bryan Cranston

as Hagrid in Harry Potter (HBO Max Series)

Charlize Theron

as Professor McGonagall in Harry Potter (HBO Max Series)

Hugh Jackman

as Dedulus Diggle in Harry Potter (HBO Max Series)

Mark Hamill

as Uncle Vernon in Harry Potter (HBO Max Series)

Charlize Theron

as Chiad in The Wheel of Time