Bobby Benson: [indicating grave marker during a visit to Arlington] That's my father. He was killed at Anzio.
Klaatu: Did all those people die in wars?
Bobby Benson: Most of 'em. Didn't you ever hear of the Arlington Cemetery?
Klaatu: No, I'm afraid not.
Bobby Benson: You don't seem to know much about anything, do you, Mr. Carpenter?
Klaatu: Well, I'll tell you, Bobby, I've been away a long time. Very far away.
Bobby Benson: Is it different where you've been? Don't they have places like this?
Klaatu: Well, they have cemeteries, but not like this one. You see, they don't have any wars.
Bobby Benson: Gee, that's a good idea.


--Billy Gray (as Bobby Benson) in The Day the Earth Stood Still

Bobby Benson: [to Klaatu] I like you Mr. Carpenter, you're a real screwball!


--Billy Gray (as Bobby Benson) in The Day the Earth Stood Still

Bobby Benson: Department of Commerce. She's a secretary. They have a man they call the Secretary, but he isn't at all. My mother's a *real* secretary.


--Billy Gray (as Bobby Benson) in The Day the Earth Stood Still

Wesley Winfield: Gee, it must be tough being a girl.


--Billy Gray (as ) in On Moonlight Bay

Wesley Winfield: Marjorie's old petticoat! You've got me in Marjorie's old petticoat!


--Billy Gray (as ) in On Moonlight Bay

Helen: Now, you didn't really see a spaceship, but you thought you did.
Bobby Benson: I'd never call YOU a liar.


--Billy Gray (as Bobby Benson) in The Day the Earth Stood Still

[last lines]
Wesley Winfield: Here's your hat. Keep your head up and breathe through your nose.


--Billy Gray (as ) in On Moonlight Bay