Cast

Pete Smith

Narrator (voice)

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Margaret Bert

Nurse (uncredited)

André Cheron

Henri Antoine Becquerel (uncredited)

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James Conaty

American Scientist (uncredited)

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Eddie Hart

Photographer (uncredited)

Emmett Vogan

Pierre Curie (uncredited)

Crew

Jacques Tourneur

Director (Directing)

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N. Gayle Gitterman

Writer (Writing)

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Richard Goldstone

Writer (Writing)

Pete Smith

Producer (Production)