Landra - One of the Guard's quartermasters who has succeeded Rand in many of his duties, responsible for tracking the movements of Guardsmice on missions.

He has patrolled for many seasons beside his close friend (and polar opposite), Saxon.

Kenzie - Known for his intellect and cleverness in battle, many of the Guard owe their lives to his levelheadedness.

Very hospitable and carries out the tradition to judge the best of tales told by her clients in debt with the winner having his/her debt removed.

June - The Innkeeper of the June Alley Inn.

Gwendolyn - The Guard's matriarchal leader who inducted many of the current Guard and oversees its members' assignments.

Conrad was sent to mouse the seaside outpost Calogero.

Conrad - A salty, peg-legged mouse who once trained with the Black Axe.

Celanawe - A champion of the Guard from long ago, known by some in the Guard as the legendary 'Black Axe', whose mythic tale was thought ended long ago.

Abigail - A healer at Lockhaven who secretly shares Midnight's ideals.

They do so with fearless dedication so that they might not just exist, but truly live. The Guard patrols borders, finds safeways and paths through dangerous territories and treacherous terrain, watches weather patterns, and keeps the mouse territories free of predators. They are not simply soldiers that fight off intruders rather, they are guides for the common mice looking to journey without confrontation from one hidden mouse village to another. They must find new safeways and paths from village to village, lead shipments of goods from one town to another and, in case of attack, guard against all evil and harm to their territories'. Many skills are necessary for the guard to keep the borders safe. True, the day to day dangers exist, but no longer are they Guard soldiers, instead they are escorts, pathfinders, weather watchers, scouts and body guards for the mice who live among the territories. After persevering against a weasel warlord in the winter war of 1149, the territories are no longer as troubled. The premise is described: 'The mice struggle to live safely and prosper among all of the world's harsh conditions and predators. Its stories revolve around a brotherhood of mice known as the 'Mouse Guard' who have sworn an oath to serve their fellow civilian mice in times of need, including making safe passage for them through the wilderness and protecting them from predators.

Mouse Guard is set in a world of sapient mice who live in a medieval era, paralleling the same age in human history, though in their world there are no humans. Petersen signing a copy of Mouse Guard: Fall 1152 at WonderCon 2009.

The art of mouse guard