A replicant of Miles O'Brien, created by the Paradan government to disrupt peace talks, believes himself to be the real man and cannot understand why everyone on Deep Space 9 distrusts him.
The replicant is the central figure and narrator of the episode Whispers. He was grown by the Paradan government as an exact copy of Chief O'Brien, complete with his memories, and sent back to Deep Space 9 while the real O'Brien was held prisoner. He was apparently programmed to act at the coming peace talks between the government and the Paradan rebels, but has no knowledge of this.
From his point of view the station has turned against him: Keiko is cold, Sisko shuts him out of security work and Bashir subjects him to endless tests. Convinced of a conspiracy, he escapes in the runabout Rio Grande and flies to Parada II.
There he finds Sisko, Kira and the rebels, is shot by a rebel guard, and comes face to face with the real O'Brien. He dies asking that Keiko be told he loves her.