Suggestions by @nathanielpreston

Gary Oldman

as Sentinel Prime in Transformers (Live-Action) Remake

Patrick Stewart

as Sentinel Prime in Transformers (Live-Action) Remake

Ian McKellen

as Sentinel Prime in Transformers (Live-Action) Remake

Liam Neeson

as Megatronus in Transformers (Live-Action) Remake

Andy Serkis

as Megatronus in Transformers (Live-Action) Remake

Ian McDiarmid

as Megatronus in Transformers (Live-Action) Remake

Tony Todd

as Megatronus in Transformers (Live-Action) Remake

Bill Nighy

as Megatronus in Transformers (Live-Action) Remake

Ralph Fiennes

as Megatronus in Transformers (Live-Action) Remake

Mark Hamill

as Megatronus in Transformers (Live-Action) Remake

Willem Dafoe

as Megatronus in Transformers (Live-Action) Remake

Maurice LaMarche

as Unicron in Transformers (Live-Action) Remake

Josh Brolin

as Unicron in Transformers (Live-Action) Remake

Javier Bardem

as Unicron in Transformers (Live-Action) Remake

Bryan Cranston

as Unicron in Transformers (Live-Action) Remake

John Noble

as Unicron in Transformers (Live-Action) Remake

Mark Hamill

as Unicron in Transformers (Live-Action) Remake

Clancy Brown

as Unicron in Transformers (Live-Action) Remake

James Earl Jones

as Unicron in Transformers (Live-Action) Remake

Tara Strong

as Arcee in Transformers (Live-Action) Remake