Straight from Dark Horse Comics Forums we learn a tantalizing bit of information! It turns out writers Mick Harrison and Welles Hartley are the same person!
But not just ANY PERSON, they are Randy Stradley, Dark Horse Comics Editor and vice president. Apparently, in the recent Star Wars Insider 127 alongside a preview of Dark Times: Out of the Wilderness, we learn that both of those names were Randy’s aliases this whole time.
This means he wrote eight issues of the “Janek Sunber” plot in Star Wars: Empire and two issues that dealt with “Dass Jennir” in the Star Wars: Republic line as Hartley. And as Harrision he wrote the entire Star Wars: Dark Times series.
Randy is a jack of many trades, and a master of subterfuge!