The Doctor (Star Trek: Voyager)

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The Doctor
Star Trek character
First appearance	"Caretaker" (1995)
Last appearance	"Ouroboros, Part II" (2024)
Created by	Dr. Lewis Zimmerman With help from Lieutenant Reginald Barclay and a team of other engineers
Portrayed by	Robert Picardo
In-universe information
Species	Hologram
Affiliation	United Federation of Planets Starfleet
Spouse	Charlene (holographic wife) Lana (Human wife)
Children	One (technological progeny via mobile emitter) Jason Tabreez (Kelemane's species son) Jeffrey (holographic son) Belle (holographic daughter)
Posting	Chief medical officer USS Voyager

The Doctor, an Emergency Medical Hologram (EMH), is a fictional character portrayed by actor Robert Picardo in the television series Star Trek: Voyager, first aired on UPN between 1995 and 2001. He is an artificial intelligence manifest as a holographic projection, and designed to be a short-term adjunct to medical staff in emergency situations. However, when the USS Voyager is stranded on the far side of the galaxy without medical personnel, he is forced to act as the starship's permanent chief medical officer. In an example of the Star Trek franchise's exploration of artificial intelligence, a rudimentary algorithm becomes a major character in the show.