What's your favourite character? First or second year; main, recurrent, or background? And why if you have a reason? This is not a contest or competition, mind you, rather just a survey.
To me, it's Victor Bergman. It's because he's everything I'd ever hope to be in life, the scientist, humanitarian, philosopher, and theologian. He seems to take things in stride, too. Now, Victor may not admit to the theologian, but when he describes a cosmic intelligence that guides and protects the Alphans, it's very close to theology. (See "Black Sun.") He's the richest and deepest character in the series to my taste. It's too bad he was discontinued, and that Barry Morse had elected not to stay on in the second year (or, perhaps, that the new producer had elected not to keep him on).