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The Doctor's attempts to graft the personality parameters of a number of historical figures onto his own subroutines result in him developing a Jekyll and Hyde personality, with murderous results. The 'good' and 'evil' versions of the Doctor wreak havoc on Voyager.


This article is a stub relating to a canon episode. You can help our database by expanding on it.



AyalaLord Byron (hologram)BrooksChakotayCulhaneThe DoctorKathryn JanewayKesHarry KimMahatma Gandhi (hologram)NakahnNeelixKashimuro NozawaTom ParisSocrates (hologram)B'Elanna TorresT'Pau (hologram)TuvokZahir
Referenced only
Marie CurieH'okhLeonardo da Vinci


USS Voyager (Intrepid-class)

Races and cultures

HologramHumanKlingonMikhal TravelerOcampaTalaxianVulcan


External Link

published order
Previous episode:
Voyager episode produced Next episode:
Favorite Son
Previous episode:
Voyager episode aired Next episode:
chronological order
Previous Adventure:
Gods, Fate, and Fractals
Pocket Next Adventure:
The Conquered