Fresh out of the academy when he joined Voyager, his first week on the job saw his ship lose more than a dozen crew mates and get stranded 70,000 light years from home. And the fun continues from then on. Harry is close friends with Tom Paris and plays Busta Kingkade in Tom's holodeck programme 'Captain Proton.'
And ensign, Harry is a junior officer - the lowest ranking officer and feels he deserves more than this, as it shows when he takes command of an alien ship in the episode 'Nightingale.' He also has a tendency to go after the wrong girls be them holograms, aliens or dead.
Harry would like nothing better than to reach home as soon as possible as is always supportive of plans to help them get to Earth quicker.