There's nothing terribly remarkable about Sergeant Halley, especially when he's compared to the majority of Star City's population, where so many are cyborware-enhanced or/and not even human! Though Halley is larger than many and more built than most, his light blue eyes are common, and his short hair has an unremarkable and very low-tech bleach-job that usually still shows his brown roots. He's cute, rather than handsome or sexy, with rounded features that are still rather boyish. Off-duty and out of uniform, he's a strictly jeans-and-tees kind of guy.

When particularly stressed out, usually due to the sight of profuse blood and/or gore, Halley develops a tic at his right eye. It usually invokes stares from strangers, and causes him no end of annoyance.

For the most part, Halley is an average Joe. He's friendly, though not terribly outgoing, yet perfectly willing to talk to anyone that comes up to him first. Halley is the kind of guy you'll see happily in a crowd of laughing people, but he won't be the guy telling the jokes. He'd rather be a follower rather than a leader, though he takes the mantle of leadership without complaint if his job ever requires it of him.

He's not a terribly remarkable soul, but he's nevertheless known for one particularly unfortunate foible. Halley is extremely squeamish. A little blood doesn't bother him, so don't expect him to faint if he nicks himself while shaving, or if he bloodies some guy's nose while scuffling with a criminal, but let him catch sight of anything worse than that, and he'll go sour-stomached and as white as a sheet. And as for gore? He lost his lunch the first time he saw a gunshot wound, and it wasn't even that bad. However, Halley has his own kind of valor despite his weak stomach, or even because of it, and always tries his hardest to keep on going. He'll wipe his brow, grit his teeth, and do his best to ignore the lurches in his stomach, because there's no way he'll fail his duty just because of some injury or another. Besides, it could be a lot worse. He could be on CSI detail.