I had missed this sad news, but Dick Tufeld, the man who gave Robby the Robot his voice on Lost In Space, died last month. He was 85. Along with his famous catchphrase "Danger, Will Robinson!" and the intro to Lost In Space, Tufield's voice was also heard at the beginning of "Voyage To The Bottom of the Sea."
Dick Tufeld (IMDB, thanks Charles Pescovitz!)