Hurting Hero: With his father's constant disapproval hanging over him, and the subconscious belief that he'll never be a proper warrior, Dannflor has a lot of emotional baggage. Song helps him get over it, though.
Tooka Levelin Badass: Notably when he takes on Raventail single-pawed and quite nearly kills him. From that point on, he becomes the warrior his father always wanted him to be.
Heel Realization: When Dannflor takes off to retrieve the tapestry of Martin the Warrior, Rusvul realizes that he was much too harsh on his son for failing to guard it earlier, and expresses his regret when talking to Janglur later on.
Parents as People: Martin knows he tries to be a nice guy, but he's a fighter at heart and doesn't realize he's being unreasonably harsh.
Meaningful Rename: His real name is Skyspike, but he renamed himself after he started living alone. It's country talk for Solitary, if you couldn't tell.
Monster Façade: When confronted with vermin his tactic is to rear up to his impressive full height and starts roaring the most bloodthirsty threats at them, which sends them running... and leaves him sprawled on the ground and gasping for breath.
Dissonant Serenity: Even for a Marlfox, Mokkan is eerily serene, throttling a rat sent to spy on him to death while speaking soothingly to the victim and murdering his sister Lantur without ever breaking out of a sweet facade.
Equal-Opportunity Evil: Shcokingly for a Redwall Big Bad, Mokkan's ascent to kingship is heralded by him promising the Marlfox slaves that they can easily earn a position in his guard while also threatening the soldiers that screwups or laziness mean they'll be made slaves.
Screw This, I'm Outta Here!: When the heroes raid his castle, and it becomes clear that the fight is lost, he sheds his embroidered finery of kingship and throws on his old Marlfox cloak, intending to make a run for it. It doesn't work out for him.
Underestimating Badassery: After being captured by the Redwallers, Gelltor calls Janglur a coward that can't fight without an army at his back. Janglur proves Gelltor wrong by challenging him to single combat and soundly kicking his ass.
Only Sane Man: He's the only Marlfox who thinks that it's a good idea to quit while they're ahead after successfully stealing the tapestry. Given that the others ignore him and they subsequently all end up dead, he probably had a point.
Beauty Is Bad: Played with — while she herself is no beauty, she's had countless valuable and precious treasures stolen to fill her bedchamber, in her delusion that death cannot visit where there are things of beauty.