He's a bit weary around a hot-headed tomboy like Rachel; not because of her lycanthropy, since she seems more like a pup than a wolf, but because of her sword. He likes her in-your-face attitude, since if she wants to find out something, she'll bite down like a dog who won't let go. Though he admits she has issues when it comes to finding her family's killer.
As a member of the Darke Pack, Howard is loyal to Sandra and does whatever she asks, as well as Rachel. However in contrast to the others, Howard is the least loyal to her and to some extent the only one Sandra does not know too well. Despite this, he is loyal to her and never once tries to act against her.
Despite the fact that he's not the most social person, sticking his nose in electrnic gear, or she's teasing him by calling him a monkey due to his posture when working on a computer, the two have feelings for each other ever since they were kids. They met when they were eleven, and both loved to work with things with a keyboard. Both Howard and Jaz have a mutual crush on one another.
He has a mutual respect, since the two feel better alone at times. Though it was Howard who had discovered that Rachel was Derek's sister; he had accidentally found this out when they were going after Sarah for vengeance for biting them during the whole Wolf Terrorist thing.