Re: I can't get Dorian's quest

What do you mean by "his first mission"? Do you mean "one less venatori"? That's not a requirement to trigger his companion quest.

There's apparently a bug where his companion quest doesn't trigger. I've read this can happen if his approval is too high before you go to Skyhold.

I believe the first thing that has to happen is a cutscene when you talk to Dorian about a letter to or from (forgot which) Felix (Alexius' son). Shortly thereafter, you have to talk to Mother Giselle in the throne room. As you said, this event may not trigger at all. For me it triggered very late in my second playthrough, while I got it very early in my first run.

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