Scott Bakula

"It all started when a time-travel experiment I was conducting went...a little ca-ca. In the blink of a cosmic clock, I went from quantum physicist...to Air Force test pilot, which could have been fun — if I knew how to fly. Fortunately, I had help: An observer from the project, named Al. Unfortunately, Al's a hologram. So, all he can lend is moral support. Anyway, here I am — bouncing around time, putting things right which once went wrong. A sort of...time-traveling Lone Ranger, with Al as my Tonto; and I don't even need a mask. Oh, boy..."