Gentle Giant: The Giant-ness seems to be something he inherited from his father, who is also built like a truck. Runs in the Family, perhaps. Eventually the giant part became literal, but he wasn't too gentle.
Genre Savvy: Especially obvious when he gives an irrefutable and logical explanation as to why Kinsey can't be trusted with secrets.
Identical Father: As an adult he just has Tyler's chin, but when we see his teen self he's pretty much just Tyler with a different haircut. Arguably this is a smart choice, as much of Tyler's arc is filling in his father's shoes.
Drowning My Sorrows: Constantly. As of the end of Keys to the Kingdom, she's trying to quit, though.
Horribly, forcibly invoked during Omega, where she's pretty horrifically force-fed several bottles of wine and worse by something that, to her, appears to be her own son. Comes with an extra, horrid sting when Kinsey discovers her and the state she's in and doesn't care, simply thinking her mother's fallen off the wagon big-style.
Weirdness Censor: Like nearly all adults, she has one that keeps her from recognizing the effects of the keys. However, when she has too much to drink, she recognizes and tries experimenting with one key.
Rendell's brother, Duncan helps take care of the Lockes with their father gone.
Straight Gay: Though it's implied he might not always be; he suggests they go to a club (as opposed to a bar) that is known to play Cher (though this may be because he correctly thought the club might be safer).
However as a kid, he liked to dress as a girl by using the gender key.
Tap on the Head: Gets knocked out pretty easily. A beer bottle is one thing, but a plastic gas can?
The Reveal: It was actually his fault that Dodge got possessed.
Friends of the Locke Children
Ellie Whedon's son and Bode's friend. Has some sort of mental disabilitynote Seems too articulate to be retarded, but too imaginative to be autistic., which makes him immune to some of the key's effects.
Kinsey's best friend, although Kinsey's social problems due to her head tampering may have driven her off.
Ambiguously Brown: Could possibly be Indian, given that Veda is an Indian name, and the mural in her home (we see it when Kinsey picks her up to go running with her new hairdo) depicts a woman in traditional Indian garb (presumably her mother) sitting with a man and a young child (her father and her).
Straight Gay: He doesn't want to go to a club with Duncan, but to a local bar so he can watch the game.
A local police detective who helps out the Lockes. Seems to have a bit of a thing for Nina.
Bad Ass: A couple of wounds from a rapier (including a swipe that just missed the eyes and then getting impaled) would slow down most people, but Mutuku barely pauses before going into ass kicking mode.
Chekhov's Gun: Played with. He mentions to Nina at one point that his mother enrolled him in fencing classes because she had a dream that one day he would need to defend himself with a sword. However, when Dodge attacks him with a rapier, Mutuku just starts knocking him around with a rolling pin while lecturing him about how this isn't a fencing match.
And of course, knowing how to defend against someone who is using a sword certainly came in handy.
Formerly one of Rendell's circle, she is now a mental patient after Dodge completely emptied out her mind with the Head Key while searching for the whereabouts of the Omega Key. Used to be in love with Rendell.
Drama teacher at the high school, Joe was the director for the school's legendary production of The Tempest starring Dodge's circle in 1988. He recognizes Dodge when he sees him again, which doesn't work out too well for him.
Demonic Possession: Has a ...*thing* lodged in his soul (if some lines in Clockworks #1 are to be taken seriously, it may be one of the Thousand Young) that guides his actions. Comments by Sam Lesser indicate that the parasite has completely taken over and simply retains Dodge's memories and personality, ala a Joss Whedon vampire.
Mind Rape: Knowing that they can't do anything about the demon and not wanting to kill their friend, Rendell's circle instead use the Head Key to rob him of all his memories of the last three years; the demon is still there but doesn't know about the keys or the Black Door. Ellie explicitly compares this to rape.
The Atoner: As a ghost, he realizes his manipulations by Dodge and attempts to kill him. He fails and is tricked by Dodge into being killed by Kinsey in Zack's body, but the information that he passes onto Rufus leads to Dodge's ultimate undoing.
Foreshadowing: Of the ironic variety. In one scene, he and a co-worker discuss who would win; Freddy Krueger or Leatherface. Parsons insists that strength and weight are the only things that matter in a fight, and he'd make quick work of any skinny guy with knives. Dodge later shows up with knives and dispatches him effortlessly.