Suggestions by @fancastunity

Nicole Kidman

as Elizabeth Arkham in Arkham Asylum: A Serious House on Serious Earth

Brett Gelman

as Tweedledum and Tweedledee in Arkham Asylum: A Serious House on Serious Earth

Robert Knepper

as Clayface in Arkham Asylum: A Serious House on Serious Earth

David Lynch

as Doctor Destiny in Arkham Asylum: A Serious House on Serious Earth

Udo Kier

as Maxie Zeus in Arkham Asylum: A Serious House on Serious Earth

Noah Taylor

as The Mad Hatter in Arkham Asylum: A Serious House on Serious Earth

Benicio del Toro

as Black Mask in Arkham Asylum: A Serious House on Serious Earth

Alexander Skarsgård

as Two-Face in Arkham Asylum: A Serious House on Serious Earth

Sean Harris

as Dr. Charles Cavendish in Arkham Asylum: A Serious House on Serious Earth

Guy Pearce

as Amadeus Arkham in Arkham Asylum: A Serious House on Serious Earth

Carey Mulligan

as Dr. Ruth Adams in Arkham Asylum: A Serious House on Serious Earth

Amanda Seyfried

as Dr. Ruth Adams in Arkham Asylum: A Serious House on Serious Earth

Rooney Mara

as Dr. Ruth Adams in Arkham Asylum: A Serious House on Serious Earth

Léa Seydoux

as Dr. Ruth Adams in Arkham Asylum: A Serious House on Serious Earth

Ethan Hawke

as The Joker in Arkham Asylum: A Serious House on Serious Earth

Patrick Wilson

as Batman in Arkham Asylum: A Serious House on Serious Earth

Riley Keough

as Constance Arkham in Arkham Asylum: A Serious House on Serious Earth

Mia Goth

as Constance Arkham in Arkham Asylum: A Serious House on Serious Earth

Kyle MacLachlan

as Jim Gordon in Arkham Asylum: A Serious House on Serious Earth

Rosamund Pike

as The Scarecrow in Arkham Asylum: A Serious House on Serious Earth