Catty is a cheetah-girl, or something close to it anyway; and Wolfy is, presumeably a wolf. Though his design seems to swap some between looking like an anthro fox and an anthro wolf. I figure there was a bit of design change midway.

 
Catty Description:
I'm gonna say she has blue eyes. It's really hard to tell in -any- of the given reference. She has a shark tooth necklace (5 teeth), a red and orange zig-zagged hair band, a blue feathered vest with white undershirt, shorts with an old fashioned belt, and feathered brown boots. The undershirt is tied reverse bow tie style. ( http://www.shoelaceknot.com/shoelace/bowtielacing.htm ) She lacks any cheetah-like face markings and has larger-than-normal ears with dark tips, same color as her spots.

She also has two red wristbands. It has been shown one on each wrist, or both on her left. I would say the one-on-each is the correct way. Her waist-length braided hair is tied off with a red hair-tie.
 
She ends up becoming sherrif thanks to Wolfy. Her nickname, mentioned once, is "Hurricane Catty"


Wolfy Description:
This guy is pretty simple, but his overall look differs from in-game sprites to his instruction booklet and ending images. In the hand-drawn material he looks very fox-like, and has a fox tail. In the actual game, he has a much more distinct wolf tail, and a more wolf-like face (in my opinion)

He's blue-gray colored, no special markings other than the strip down his muzzle. He has a blue mantle and a brown undershirt. Jeans and tall boots. He also has handwraps on both arms. He's a fairly muscled character, even moreso on certain parts of the promotional material of the game (game's cover and the animation segment) and is a fairly rough character. He also goes by "Shooting Star".

I suggest to those who draw him to draw the half-and-half wolf-tail instead of the fox tail. They chose the name Wolfy after all so it would be more appropriate.