Robot: (to Will before jumping dimensions to search for John Robinson) Are you frightened, Will Robinson?
Robot: So am I!
'Anti-matter' John Robinson: (to the real Don West) You're shiftless, you're worthless, and lazy, JUST LIKE YOUR OPPOSITE!
'Anti-matter' Robot: (to real Robot's sympathy) I don't need any help from you, punk! Just get outta here while you can!
Dr. Smith: But if there are two Profressor Robinsons, how will we able to tell them apart?
Robot: It will not be difficult. One is good, the other evil.
Dr. Smith: (fearfully) Oh no!
Robot: Oh yes!
'Anti-matter' Robot: Whaddya in for, kid?
Robot: I-I am not in for anything. I am here by mistake.
'Anti-matter' Robot: That's what they all say!
John Robinson: (sarcastically) I can just see him going through a whole lot of trouble to bring your duplicate back.
Drun: He will, he will, he will, he will, I know he will!
John Robinson: (sarcastically) Oh sure he will. By the time you wake up to the fact that you've been double-crossed, he'll be at least two galaxies away from here.