The first movie was "Hunt For Red October", with Alec Baldwin as Jack. Then came two movies with Harrison Ford, "Patriot Games" and "Clear and Present Danger". Last was "The Sum of all Fears" with Ben Affleck.
Alec Baldwin played Ryan in "Hunt for Red October". Harrison Ford took over in "Clear and Present Danger" and "Patriot Games". Ben Affleck played him in "Sum of All Fears".