Suggestions by @joshparker

Jamie Foreman

as Camon in Mistborn

Charlie Hunnam

as Kelsier in Mistborn

Matt Berry

as TenSoon (voice) in Mistborn

Alex Norton

as General Poulder in Joe Abercrombie’s First Law Universe

Adam Scott

as Data in Star Trek: The Next Generation

Allen Leech

as Miles O’Brien in Star Trek: The Next Generation

Bill Hader

as Q in Star Trek: The Next Generation

Ola Rapace

as Chivalry in Assassin's Apprentice (Farseer Trilogy)

Sabrina Bartlett

as Molly in Assassin's Apprentice (Farseer Trilogy)

Asa Butterfield

as Fitz Chivalry in Assassin's Apprentice (Farseer Trilogy)

Rain Dove

as The Fool in Assassin's Apprentice (Farseer Trilogy)

Helena Bonham Carter

as Lady Patience in Assassin's Apprentice (Farseer Trilogy)

Willem Dafoe

as Chade in Assassin's Apprentice (Farseer Trilogy)

Daniel Sharman

as Regal in Assassin's Apprentice (Farseer Trilogy)

James Northcote

as Galen in Assassin's Apprentice (Farseer Trilogy)

Demetrius Joyette

as Slash in Metallica Biopic

Rhys Darby

as Ian “Lemmy” Kilmister in Metallica Biopic

Jake Cuenca

as Kirk Hammett in Metallica Biopic

Joseph Gordon-Levitt

as Cliff Burton in Metallica Biopic

Josh Hutcherson

as Michael Anthony in Jump