"This is Alfred Hitchcock speaking. In the past, I have given you many kinds of suspense pictures, but this time I would like you to see a different one. The difference lies in the fact that this is a true story, every word of it. And yet, it contains elements that are stranger than all the fiction that has gone into many of the thrillers that I've made before."

"An innocent man has nothing to fear, remember that."

"Somewhere...somewhere there must be the right man!"

"Robert Essen — Gregory Balestrero"

"Richard Robbins — Daniel, the guilty man"

"Larry J. Blake — Reporter #2 (as Larry Blake)"

"Harry Lauter — Reporter #1"

"Charles Evans — Chief Camden"

"Pierre Watkin — Mayor Bremer"

"Tristram Coffin — District Atty. McGraw"

"Dr. Steigg, if it weren't for my money, you'd be experimenting with cats and dogs in that flea-sized lab of yours in Europe."

"Steigg, you may be a crackpot, but you're also a genius."

"He Comes from Beyond the Grave!"

"This animal looks content, doesn't it? You'd never suspect it had 18 electrodes implanted in its brain!"

"Richard Denning — Dr. Chet Walker"

"It would answer the riddle, wouldn't it? Remote-controlled creatures, their brains powered by atomic energy, roaming the streets, directed from a central point."

"A dead man walks the streets to stalk his prey! So terrifying only screams can describe it!"

"S. John Launer — Capt. Dave Harris"

"Linda Bennett — Penny Walker"

"Angela Stevens — Joyce Walker"

"Gregory Gaye — Dr. Wilhelm Steigg"

"Michael Granger — Frank Buchanan"

"Lane Chandler — Gen. Saunders"

"Nancy Davis — Janice Cory"

"Lew Ayres — Dr. Patrick Cory"

"Gene Evans — Dr. Frank Schratt"

"Steve Brodie — Yocum"

"Merv Griffin — Georges Brevert"

"Dolores Dorn — Camille"

"Paul Richards — Rene the Knife-thrower"

"Rolfe Sedan — LeBon"