It's been a while since we had a quiz thread so here's a new one. Firstly, just a few guidelines to avoid it being abandoned after the first few posts. First of all, the person who answers a question has the right to ask the next question. Secondly, no-one's answered your question after a day or two, then ask another easier question. These threads usually die when someone asks some obscure question no-one knows the answer to and the thread sinks to the bottom because everyone gets tired of waiting for the answer. Hard questions are ok but don't leave them unanswered for too long. Thirdly, ask hard questions if they're interesting or if you think people might know the answer. Don't ask ridiculously hard questions just to show how clever you are because no-one knows as much. I don't think that's hapenned in our past threads but I've seen it enough elsewhere. Anyway, I'll start it off with a question I'd rate as medium difficulty. The character of Reginald Barclay in Startrek was played by an actor who also played a major character in a hit 80s tv series. What was the name of that character and series?