The Gothic voice acting is also top notch
Also, Gothic 1 (2001) was one of the first of these type of RPG's to standard-ize and normalize RPG's actually having full-blown voice-acting, even before Oblivion (2006) did this.
Heck, G2 only came only a year later (2002).
Morrowind (2002) certainly wasn't full-blown voice-acted; only certain stuff.
Back then, you were lucky if some main quests and mainly a few lines in "important" side quests actually had any sort of voice-acting in these huge RPG's with tons of story, narrative, writing, dialogue, lines, choice/decision-making, and things of that sort.
Games like NWN, BG1, BG2, PST, IWD, etc etc - they weren't full-blown voice-acted.