Violent, impulsive and indulgent in the extreme, Max is the source of much of the franchise's unique humor. Max is an active member of the Freelance Police along with his long time partner and friend Sam.

He often refers to himself as a lagomorph, though he also sometimes refers to himself as a rabbit. A rabbit is a type of lagomorph, so these are not mutually exclusive. He enjoys violence and prefers to solve problems aggressively. He has a slight distaste for the long stories, anecdotes, and sentences that Sam constantly spouts forth, often asking Sam and others not to use various words such as 'ensue' and 'acumen'. He shares Sam's enthusiasm in just about anything, especially if it involves large guns and trouble. He also has very poor hygiene, as he sometimes tastes his own belly button lint, and once had a large "suspicious growth" behind his ear. Sam has commented on his pungent bodily odors on more than one occasion. Both Sam and Max have also commented on the obscure fact that Max has a metal plate in his skull.

Max always carries a Luger around, and when asked where he keeps it usually responds with "None of your damn business.". He is fairly trigger-happy with it in the early comics, but this is rarely seen elsewhere. Like Sam, he's a lousy shot and never seen actually hitting anyone. Perhaps because of this, he prefers to get up close and simply leap at his foes and hurt them in whatever way he can come up with. This fails miserably about as often as it works; despite his boundless energy and love for violence, Max isn't particularly good at fighting.

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