Jonathan Harris credited as playing...
Dr. Zachary Smith
- Dr. Zachary Smith: [to the Robot] Only one person is currently if use to us - Major Don West. "Useful" because he's the only one who can pilot this spaceship. Since the others serve no purpose, they must be liquidated. When we have learned what we need to know from Major West, he will be liquidated as well. With me, so far?
- The Robot: Affirmative. Destroy everyone.
- Dr. Zachary Smith: Well, now, that's hardly a delicate way of putting it. I prefer the term "eliminate." It's so much tidier.
- The Robot: I do not vote. I am not programmed for free choice.
- Dr. Zachary Smith: Don't worry about it. It's vastly overrated.
- Dr. Zachary Smith: I ask myself why all this bitterness and strife? Why all this intense rivalry? After all, we all belong to the same race... uh... the human race... embarked on an exploration of that greatest of mysteries, the unknown universe.
- Maj. Don West: [Holding Smith in a headlock] You're not giving *any* orders to that robot, except one. When I tell you to, you'll say exactly *six* words: 'Robot, go back to your compartment.'. Deviate by one syllable, ONE breath, and it will be your last! Robot, go BACK to your compartment. You got that? Nod if you understand me.
- [Smith nods]
- Maj. Don West: All right. Say it now.
- Dr. Zachary Smith: Robot... go... back to your compartment.
- [the Robot complies and goes below deck]
- Maj. Don West: OK buster, into the freezing tube!
- Dr. Zachary Smith: My dear Dr. Robinson, I can't begin to describe how happy I am at finding you alive.
- Maj. Don West: Now I'LL tell one.
- Dr. Zachary Smith: Tell me, my friend, are you robot enough to crush this helmet?
- The Robot: Affirmative.
- Dr. Zachary Smith: You have my permission to do so.