Dev Tarrant was a Terran Security Officer who spends most of his time working on the Outer Worlds.

He walked with a pronounced limp.

He was instrumental in betraying the meeting of Rebels in the tunnels outside the dome, and appeared at the end of the trial of Blake, presumably to gloat.

When Varon began investigating Blake's case, and discovered the truth about the massacre, Dev Tarrant also had him killed outside.