Keen Arrow is Calamity Coyote's superhero alter-ego. He is a parody of the DC Comics superhero, Green Arrow, and is a member of the Just-us League of Supertoons.
He first appears in the New Class Day episode segment,The Just-us League of Supertoons, when Superbun introduces him as he tries to show off his archery, but fails when he places the arrow in his direction. After learning that Batduck doesn't have any super powers, he and the other League members kicked him out, only for Wex Wuthor to appear and plan to use his super-power transfer belt to suck all of the powers of him and the other members. After Wex is defeated, Keen Arrow and the other heroes cheer for Batduck.
- Archery: Although not a superpower, Keen Arrow is shown to be somewhat of a master of archery, only to fail while showing it to Batduck and Decoy.
- SuperBun said that only toons with superpowers can join the League, which is why he rejected Batduck. Keen Arrow doesn't have any powers, either, so how he got into the league is unknown.