Jeanne and Mark
The two lieutenants of Dyre Pack, and two tertiary or secondary characters from The Worst Werewolf.
Jeanne Langogne, there on the left, and Mark Portefaix, there on the right. Jeanne's hair is bright bleach blonde with some sort of color underneath, while Mark's is bright purple on the sides. Both transform on full-moon nights into standard "Wolfman"-style werewolves. Since Jeanne's hair is naturally darker, most of her fur is darker as well, while Mark gets grey and black except for the sideburns and down the back of his neck which are still purple.
These two have been best friends forever. They may look young, but they are some of the werewolves that get nigh-immortal status and as such have stopped visibly aging at 20. They're actually around 30-ish so it doesn't really matter much yet. They've known each other since middle school and they are almost like brother and sister. They were even turned at the same time by the same werewolf. The scars on Mark's chest and Jeanne's back were the infecting gashes. Unfortunately it seems that in most cases the nigh-immortal status are conferred with the contagious form of lycanthropy. These two are also contagious, so they have to be careful around normal humans when they transform.
Thankfully most werewolves can retain a good deal of control when they transform, unless it's a Blue Moon (the second full moon in a month). On Blue Moons, every werewolf transforms and most of them become ferocious and wildly unpredictable.