Synonyms for prime mover

Well, here was the arch-revolutionist, the prime mover of them all.

Something prompted him that Jake was to be the central figure, the prime mover.

Now, I have any amount of that, and I was really the prime mover in most of Mascarin's schemes.

Simcoe was almost certainly the prime mover in the legislation of 1793.

If those shutters ever open I think you'll have to be the prime mover.

Gisby has been the prime mover in it—the chief snake in the grass.

And the prime mover in the conspiracy had not yet been tried.

Then he is not the prime mover of all these ingenious thefts?

Motion, therefore, demands an external source or prime mover.

And in all that was done during the next minutes Naomi was prime mover.