Marvin is one of the supporting cast of Forest Tails.

3 years old, he's in the prime of his life, which unfortunately for him is also the average life expectancy for beech martens in the wild. His role in the food chain as both predator and prey leaves him with plenty of rough edges, some of which are the result of near misses with somebody elses teeth, but it's not like that's ever kept a mustelid down.
Despite their odd relationship in the order of things, Marvin has been friends with Tobur ever since he was old enough to go on the prowl by himself and even though they have their differences in a lot of ways, they're as loyal to eachother as if they were family.

Marvin, Forest Tails and art is © to iPoke