- Dinner guest: Clever, these Chinese.
- Ah Ling - the Houseboy: [while being questioned about the murder] Mr. Perry very good friend. Chinese do not repay friendship with death.
- Watchman: [trying to pick out his assailant from a group of men in tuxedos] They all look alike to me in that soup and fish getup.
- Arthur Perry: [explaining the mechanism of Dr. Houghland's death] They created the interstellar frequency, which is the death ray.
- [last lines]
- Arthur Perry: As Ah Ling would say... Even though the eyes may see, the mind will not believe.
- James Houghland: I thought that television should be something more than just another form of amusement.
- Hammond: You realize it's possible for a man of experience, with brains and ambition, to go far in this business?
- Richard Grayson: Well, I've got the ambition.
- Isabella - the Cook: [after explaining to police she was in the bathroom at the time of the murder] Is my face *red*?