TV Episode | TV-G | | Action, Adventure, Sci-Fi
The Doctor's singing talent is so appreciated by the Qomar that he is considering resigning his Starfleet commission and staying on with his millions of adoring fans.
This takes place in 2376.
Seven of Nine:
I believe the Qomar are attempting to disable our com system.
Captain Janeway: How?
Seven of Nine: By overloading it with millions of teraquads of irrelevant data.
Captain Janeway: What do you mean by "irrelevant"?
Captain Janeway: They're transmissions... all addressed to the Doctor.
Seven of Nine: Precisely. I've only been ...
Captain Janeway: ...
When The Doctor is with Janeway to resign his commission, Janeway is telling The Doctor that she is responsible for the medical needs of this crew. You can determine that the medical knowledge is essential for this crew and its future survival. However, we know from Star Trek: Voyager: Living Witness (#4.23) that Voyager has a backup module of the EMH doctor stored in memory that can also function as the EMH. For that matter, even at the end, the Qomar duplicate the doctor, which does end up with the doctor being able to stay on board.