- Dr. Emmett Brown: Time circuits on.
- Marty McFly: What do you mean "Time Circuits on"? Doc, we're not going back now!
- Dr. Emmett Brown: Yep.
Chris Lloyd - Dr. Emmett Brown
Michael J. Fox - Marty McFly

“- Merriman Lyon: Walk with us, Will.
- Will Stanton: Where?
- Merriman Lyon: Through time.”
Ian McShane - Merriman Lyon
Alexander Ludwig - Will Stanton

“- Peggy Sue: You think time travel is possible for people?
- Richard Norvik: Yes. It's absolutely possible for people, for dogs, for cancan girls.
- Peggy Sue: Oh, then I'm not crazy.
- Richard Norvik: Well, I really don't know if you're crazy. I know most people think I am.”
Kathleen Turner - Peggy Sue
Barry Miller - Richard Norvik

“The bottom line is, I believe, that we have hopped an absurdly short distance into he past. Say as little as 15 minutes and we're discovering the unlovely truth about time travel.”
Dean Stockwell - Bob Jenkins

“An aurora over the desert. That strengthens my point. If we were to fly into that, and it was a time-rip then that means we're no longer in our own time, ladies and gentlemen.”
Dean Stockwell - Bob Jenkins