Talus

From SGCommand

Talus was the leader of the Asuran force which took Atlantis, killing the Atlanteans there. He personally probed the mind of Jack O'Neill, and learned of Atlantis 1's plan to use Niam against them. He was killed when Atlantis 1 rigged the shield emmiters in Atlantis to emit a massive disruptor wave. (ATL: "The Return, Part 1")

Its possible that, like Oberoth, Talus could be replicated again.