Suggestions by @ivaneavendano

Michael Ironside

as Ultra Magnus in Transformers: Battle of Cybertron

Michael Ironside

as Ultra Magnus in Transformers: Rise Of Unicron

Billy Brown

as Cliffjumper in Transformers: Prime (Bayverse version)

Dylan O'Brien

as Bumble bee in Transformers: Prime (Bayverse version)

Christopher Judge

as Optimus Prime in Transformers: Prime (Bayverse version)

Kiefer Sutherland

as Optimus Prime in Transformers: Prime (Bayverse version)

Alan Tudyk

as Optimus Prime in Transformers: Prime (Bayverse version)

Rory McCann

as Megatronus in Transformers: Prime (Bayverse version)

Leonard Nimoy

as Galvatron in Transformers: Prime (Bayverse version)

Liev Schreiber

as Breakdown in Transformers: Prime (Bayverse version)

Lance Henriksen

as Skyquake in Transformers: Prime (Bayverse version)

Richard Green

as Skyquake in Transformers: Prime (Bayverse version)

Nicolas Cage

as Knockout in Transformers: Prime (Bayverse version)

Isaac C. Singleton, Jr.

as Soundwave in Transformers: Prime (Bayverse version)

J.K. Simmons

as Shockwave in Transformers: Prime (Bayverse version)

James Gaylyn

as Shockwave in Transformers: Prime (Bayverse version)

Michael Jai White

as Warpath in Transformers: Rise of Unicron

James Horan

as Wheeljack in Transformers (Reboot Franchise)

Billy Brown

as Cliffjumper in Transformers (Reboot Franchise)

Dwayne Johnson

as Cliffjumper in Transformers (Reboot Franchise)