Suggestions by @cw1234

Master Chief

as Keanu Reeves in Which characters would you like to see actors play in live-action

Magneto (Max Eisenhardt/Erik Lehnsherr)

as The Council Of Evils Other Members in The Great War To Prevent Destruction

Doctor Doom

as The Council Of Evils Other Members in The Great War To Prevent Destruction

Kiefer Sutherland

as Optimus Prime in Whoformers

Keanu Reeves

as Optimus Prime in My Transformers fancast

Keira Knightley

as Arcee in James Gunn's Transformers (2007)

Karen Gillan

as Arcee in James Gunn's Transformers (2007)

Ginnifer Goodwin

as Arcee in James Gunn's Transformers (2007)

Wallace & Gromit: Vengeance Most Fowl

as 2024 in Pop Culture Sorted By Years

Ashley Johnson

as Benedict Cumberbatch in Dream Actor / Actress-Actor / Actress Collaborations

Keanu Reeves

as Optimus Prime in Whoformers

Kiefer Sutherland

as Transformers: Rise of Unicron in Actors who should Star in Franchises

Helena Bonham Carter

as Ultron in Marvel Comics (Gender Swap)

Mysterion

as CW1234'S Alliance in Create! Your! Team! (My Version)

The Coon

as CW1234'S Alliance in Create! Your! Team! (My Version)

Human Kite

as CW1234'S Alliance in Create! Your! Team! (My Version)

Toolshed (South Park)

as CW1234'S Alliance in Create! Your! Team! (My Version)

Jazz Fenton

as CW1234'S Alliance in Create! Your! Team! (My Version)

Tucker Foley

as CW1234'S Alliance in Create! Your! Team! (My Version)

Sam Manson

as CW1234'S Alliance in Create! Your! Team! (My Version)