Can't top Kurtwood Smith, though. He was on Trek three times as three characters.
So were Mark Lenard and Diana Muldaur. I don't know anyone who appeared as more than three different characters, though.
Speaking of Robocop connections, Peter Weller was in a couple episodes of Enterprise and Into Darkness. And Ronny Cox was in a two-parter episode of TNG.
Among the people who use the Internet, many are obtuse. Because they are locked in their rooms, they hang on to that vision which is spreading across the world. But this does not go beyond mere ‘data’. Data without analysis [thinking], which makes you think that you know everything. This complacency is nothing but a trap. Moreover, the sense of values that counters this notion is paralyzed by it.
And so we arrive at demagogy. - Hideaki Anno, 1996