Vrelk was the controller of a Malon export vessel, eleventh gradient in early 2375.
Vrelk led an unsuccessful mission to attempt to steal the only multi-spatial probe of the USS Voyager which was trapped in the atmosphere of a gas giant. He saw the probe as appropriate compensation for the destruction of another export starship that had been destroyed in an earlier attempt to steal the probe. (VOY: "Extreme Risk")
Vrelk was played by actor Hamilton Camp.
He filmed his scenes on Tuesday 30 June 1998 on Paramount Stage 16.