- [Upon discovering the skeleton in Simpson's office]
- Hilda: I'm not going to keep a job where this sort of thing goes on.
- Captain: When we return to our planet, the high court may well sentence you to *torture* and death for your treason.
- Captain: Morrow! Go below and bring up the young gargon specimen. Now the decision depends on its reactions.
- Derek: Wait, Captain. I have found evidence of intelligent beings on this planet!
- Thor: Of what concern of foreign beings?
- Derek: Of none to you, Thor! Just as you were so unconcerned when you destroyed this small creature, so bravely!
- Thor: It was no more than an insect.
- Derek: But it had life. And that life you had to take to satisfy your endless hunger for killing.
- Derek: Betty, when you learn where I'm from, well... you will not understand but, I hope it will not make any difference between us because...
- Betty Morgan: I Dont care where your from. I don't understand all this, but somehow I feel that I've always known you. That we've never been apart!
- Betty Morgan: Derek, this is Alice.
- Alice Woodward: Derek! Hey, I like that. Come on in! The water's fine!
- Betty Morgan: You won't be going back ever, will you?
- Derek: I shall make the earth my home, and I shall never, never leave it.
- Joe Rogers: [looking upon Sparky's skeleton] You know, I don't get this guy. Animals or humans. He just seems to like killing.
- Mac, a Cop: There's more to it than that, Joe. There's something behind this... something we don't understand. The weapon he uses, it's unheard of. Blasting flesh right off the bones.