Height: 5’10 (5’9 as of his freshperson year)
Hair: Curly, dust-blond (although his beard grows in quite dark), cut pretty short for most of the book
Skin: Really, really, "fishbelly" white (except usually with a tan)
Hair: No mention of color, widow’s peak, receding
Height: Taller than Henry (when Henry was 5’9, anyway), a little shorter than Guert
Hair: “Ashen”, weirdly enough, cut very short (his stubble is also described as "grayish fuzz")
Skin: "Weak coffee" or "ashen" again, and lots of interesting colors when he's hit by the baseball
Height: A bit taller than Owen, "several inches" taller than Henry, described numerous times as “tall”, so I’d guess 6'1 or 6'2
Hair: Thick, silver-gray now, previously brown, cut short (but mussable)
Height: No clue, so presumably about average
Eyes: Not the same as Guert’s
Hair: Shoulder-length, kinky, and anything from “coppery” to “port” to “purply” to “wine” to “bruise”, which I guess comes out at something like reddish-brown?
Skin: Again, not like Guert's, so probably pretty pale (she's described as "pale" a couple of times, and the skin around her fresh tattoo as "pinkish")
...at least no one has purple eyes?