Suggestions by @charlesthefifth

Ron Perlman

as Optimus Primal in Beast Machines: Transformers (L.A. Voice Cast)

Willem Dafoe

as Joker in The Batman

Frank Welker

as Original Megatron in Beast Wars: Transformers (L.A. voice cast)

Frank Welker

as Cicadacon in Beast Wars: Transformers (L.A. voice cast)

Billy West

as Sea Clamp in Beast Wars: Transformers (L.A. voice cast)

Jeff Bennett

as Ram Horn in Beast Wars: Transformers (L.A. voice cast)

Keith David

as Tigerhawk in Beast Wars: Transformers (L.A. voice cast)

Tress MacNeille

as Predacon Computer in Beast Wars: Transformers (L.A. voice cast)

Jeff Bennett

as Sentinel in Beast Wars: Transformers (L.A. voice cast)

Michael Dorn

as The Vok in Beast Wars: Transformers (L.A. voice cast)

Susan Blu

as Transmutate in Beast Wars: Transformers (L.A. voice cast)

Jim Cummings

as Ravage in Beast Wars: Transformers (L.A. voice cast)

Diedrich Bader

as Depth Charge in Beast Wars: Transformers (L.A. voice cast)

Clancy Brown

as Rampage in Beast Wars: Transformers (L.A. voice cast)

Billy West

as Quickstrike in Beast Wars: Transformers (L.A. voice cast)

Jeff Bennett

as Silverbolt in Beast Wars: Transformers (L.A. voice cast)

Mark Hamill

as Inferno in Beast Wars: Transformers (L.A. voice cast)

Elizabeth Daily

as Blackarachnia in Beast Wars: Transformers (L.A. voice cast)

Tress MacNeille

as Airazor in Beast Wars: Transformers (L.A. voice cast)

Keith David

as Tigatron in Beast Wars: Transformers (L.A. voice cast)