The invaluable resource IMDB.com has steadily been expanding its coverage to include old video games with voiceover parts. Their latest upgrade includes Wing Commander 1 and 2. They don't have too much in the way of credits, but Chris Roberts is noted as the director. The best way to see all the WC entries is to look up his bio here. You can also find Strike Commander, Privateer and the newer products. Conspicuously absent are Prophecy and Privateer 2.