Suggestions by @sadsamurai

Gigi Proietti

as Corporal Nobbs in Guards! Guards!

Terence Hill

as Sergeant Fred Colon in Guards! Guards!

Jay Acovone

as Captain Sam Vimes in Guards! Guards!

Ray Abruzzo

as Lord Havelock Vetinari in Guards! Guards!

Giancarlo Giannini

as The Supreme Grandmaster in Guards! Guards!

Brian Cox

as DEATH. in Pyramids

Zeina

as Ptraci in Pyramids

Youssef Chahine

as Dios in Pyramids

Ahmed Ezz

as Pteppic in Pyramids

Joe Biden

as President of the United States in Captain Marvel: The Flame of Revenge

Brian Cox

as DEATH. in Wyrd Sisters

Ashley Jensen

as The Duchess in Wyrd Sisters

Paul Telfer

as Tomjon in Wyrd Sisters

Sean Connery

as Duke Felmet in Wyrd Sisters

Patrick Stewart

as King Verence in Wyrd Sisters

Kelly Macdonald

as Magrat Garlick in Wyrd Sisters

Miriam Margolyes

as Gytha Ogg in Wyrd Sisters

Tilda Swinton

as Esmerelda Weatherwax in Wyrd Sisters

Bill Bailey

as Cutangle in Equal Rites

Rian Gordon

as Simon in Equal Rites