Jack Bauer, as seen on '24', does not belong in the main Toobworld. Because of that show's line of succession for the President of the United States, it has to have its own TV dimension.
There might be only one Jack Bauer of Earth Prime-Time, and he was to be found in the late soap opera, 'Guiding Light'. For alls I know, as Stuart Best would say, the Jack Bauer who looks like an actor named Kiefer Sutherland could be that other Jack Bauer's illegitimate son... and he leads a quiet life in Springfield.
But he does exist in other TV dimensions, as can be evidenced by this clip from Skitlandia: