William Harrigan credited as playing...
Dr. Arthur Kemp
- The Invisible Man: I hope your car's insured, Kemp. I'm afraid there's going to be a nasty accident in a minute. A very nasty accident!
- Dr. Kemp: Griffin, I'll do anything! Everything you ask me!
- The Invisible Man: You will? That's fine. Just sit where you are. I'll get out and take the handbrake off and give you a little shove to help you on. You'll run gently down and through the railings, then you'll have a big thrill for a hundred yards or so till you hit a boulder, then you'll do a somersault and probably break your arms, then a grand finish up with a broken neck! Well, goodbye, Kemp. I always said you were a dirty little coward. You're a dirty sneaking little rat as well. Goodbye.
- Dr. Kemp: [hearing the distant clock tower chiming ten and thinking himself alone] 10 o'clock. 10 o'clock, he wanted to murder me!
- The Invisible Man: I think this will do nicely, Kemp. We'll stop here. It's 10 o'clock. I came with you to keep my promise.
- Dr. Cranley: Monocane is a terrible drug.
- Dr. Kemp: I never heard of it.
- Dr. Cranley: You wouldn't, Kemp. It's never used now. I didn't know it was even made. It's a drug that's made from a flower that's grown in India. It draws color from everything it touches. Years ago they tried it for bleaching cloth. They gave it up because it destroyed the material.
- Dr. Kemp: That doesn't sound very terrible.
- Dr. Cranley: Yes, I know, but it does something else, Kemp. It was tried out on some poor animal - a dog, I believe. It was injected under the skin, and it turned the dog dead white, like a marble statue.
- Dr. Kemp: Is that so?
- Dr. Cranley: Yes, and it also sent it raving mad.
- Dr. Kemp: You surely don't think...
- Dr. Cranley: I only pray to God that Griffin hasn't been meddling with this ghastly stuff.
- Dr. Kemp: He'd never touch a thing with madness in it.
- Dr. Cranley: He might not know. I found that experiment in an old German book, just by chance. The English books only describe the bleaching power. They were printed BEFORE the German experiment.
- Flora Cranley: He was so strange those last few days before he went. So excited and strung up. And yet he wouldn't say a word to explain. I've never seen him like it before. He was always so keen to tell me about his experiments.
- Dr. Kemp: He meddled in things men should leave alone.
- The Invisible Man: Are well alone in the house?
- Dr. Kemp: Yes.
- The Invisible Man: Alright go now. If you raise a finger against me you're a dead man. I'm strong and I'll strangle you.
- Dr. Kemp: Your father's a scientist, Flora. He's discovered more about preserving food than any man living and Jack and I were employed to help him. That's a plain, straightforward job. It's not romantic; but, it saves hundreds of deaths and thousands of stomach aches.
- Dr. Kemp: He cares nothing for you, Flora. He'll never care about anything but test tubes and chemicals.
- Dr. Kemp: Shall I let them in?
- The Invisible Man: Yes, of course you must let them in. I shall go and prepare myself in my room. I shall see Flora - alone.
- Dr. Cranley: Flora's worried about Griffin.
- Dr. Kemp: I don't wonder. I should have thought at least he could drop a line.
- Dr. Cranley: It's a queer thing.