With the advances in AI the things You mention above may soon be possible.
But to the point,
John Ritter as the original Ant Man would be interesting.
Michael Biehn as Iron Man perhaps
Mr. T, T as in Terminator
Roger Duvall as Hannibal Lector
Peter Weller as Han Solo
Alicia Silverstone...
So Londonium is the New Rome?
Does C3 have bride with imperial lineage in mind for himself or his heirs? Someone that can help solidify his claim to be the continuation of the Empire?