Former teacher of Dreyfus who heads the French army's secret service (Deuxième Bureau). He discovers the trial's bias, investigates irregularities, exposes the real spy, and fights for Dreyfus's exoneration despite severe military opposition. Eventually becomes Minister of War.
Henry serves as a key military opponent in the cover-up.
Direct opposition between the truth-seeker and the actual traitor.
Picquart previously instructed Dreyfus before leading the investigation.
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