Cry for the Devil: Guy of Gisborne, of all people. After coming off as an unrepentant, child-slapping asshole with zero redeeming qualities, we find out his backstory: he used to be a sweet kid who loved his horse and never wanted to fight anyone. His mother, on the other hand, was a right bitch who was obsessed with the family's honour and insisted Guy become a knight, up to and including beating him herself. Guy finally snapped and tried to escape on his horse only to be caught by his mother, who then had the horse killed, skinned, and forced Guy to wear the skin as a knight's cloak. He's also shown to feel guilty about killing Friar Tuck - he's still an ass, though, and even Robyn's white cat didn't trust him.
Romantic Plot Tumor: Robyn's romance with German Villaraigosa, in The Curse. It's not only that her romantic interest for him doesn't bring anything to the story, beyond an excuse to keep the plots of Sam's posession and the ritual murders around the city connected. But it's also the fact that Robyn Hood is... well, Robyn Hood. So how do you think a character named like that, would feel about a rich asshole that thinks that he can get away with everything because he has money?
Too Dumb to Live: Marian just barely averts this on multiple occasions, from attempting dangerous magic rituals without telling Robyn to accidentally getting Sam possessed and then exiled to a distant dimension to impulsively bringing Hades's daughter back to life.
