Before 'Terminator Salvation' hits theaters, we catch up with casts of the first three 'T' flicks.

Where has the cast of the first three 'Terminator' movies -- 1984's 'Terminator,' '91's 'Terminator 2: Judgment Day,' 2003's 'Terminator 3: Rise of the Machines' -- gone? Mostly they've been terminated. In fact, only two actors (Arnie's one, do you know the other?) have appeared in all three films.

As we approach the release of the fourth movie in the series, 'Terminator: Salvation' (May 21), we catch up with the faces -- human and not so much -- that have populated the franchise.