The Invisible Ray
“Delving into new, strange fields of mystery!”
Synopsis
Dr. Janos Rukh discovers a certain type of radium that has almost magical healing properties. But the element has a dangerous side, too, and it has already started affecting Rukh. Consumed by paranoia, he begins to suspect that his wife is having an affair. Wild for revenge, Rukh hatches a deadly plot...using his own poisoned body as a weapon to kill.
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How many hands made this film
The scale of the collaboration
Principal cast & crew: 17
These are the principals we have on file — the full crew ran to the hundreds. Every film this size was made by far more hands than any credits list ever names.
Why a floor?
This is a minimum, not a total. We only count the credits we’ve captured so far, and coverage is uneven — a blockbuster might show a few hundred names while another of the same size shows a couple dozen. The real crews all ran into the thousands. The number here only grows as full credits are enriched — so we frame it as a floor, never a headcount.
Craft leads on file
Edited by Bernard W BurtonShot by George RobinsonScored by Franz Waxman
Also known as
- Tödliche Strahlende
- El poder invisiblees
- Le Rayon invisiblefr
- Il raggio invisibileit
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Cast & Crew
17 unique people credited
Top billed cast
Boris Karloff
as Dr. Janos Rukh
Bela Lugosi
as Dr. Felix Benet
Frances Drake
as Diana Rukh
Frank Lawton
as Ronald Drake
Violet Kemble Cooper
as Mother Rukh
Walter Kingsford
as Sir Francis Stevens
Beulah Bondi
as Lady Arabella Stevens
Frank Reicher
as Professor Meiklejohn (Mendelssohn in end credits)
Paul Weigel
as Monsieur Noyer
Georges Renavent
as Chief of the Surete
Directors
1Writers
3Other crew
3Parents Guide
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