Indefinite being it will be updated over time, and lists are currently incomplete.
NOTE: Certain people can fall into multiple categories. Lists are also in no particular order.
COOL PEOPLE!
Addict - Is nice to people.
Rucklo - Rather lulzy at moderating but still efficient at it.
Space-Whale - A rather memorable name with a memorable personality!
BlakeMo - Even with piss in his lemon drank, he is nice & witty.
Tateos - An 08 user with good taste and good jokes. Somewhat inactive, but still cool.
CosmicDeath - Illustrated Timmy's epic beard.
Luis - Everybody's favorite Hispanic staff member that travels to exotic locations.
Timmy - Epicly bearded and well-mannered.
Alchemist94 - Knows a joke when he sees it.
EyeLovePoozy - A firm, yet respectable person both on and off the BBS.
Gagsy - Best female UK user on the BBS. Actually, best female user on NG period.
TheJamoke - Newgrounds' Photoshop King.
Gobblemeister - He's so uncool that he's cool.
Coop - I forgot why he's cool.
Bahamut - Everyone's favorite dragon.
TehSlapHappy - Everybody hates Slappy. But they love his rap.
Rig - THE Audio Mod! Also makes music for games.
Rooster - Everybody's favorite cock!
HeavyMetalGuy - Cool guy.
Chronamut - Newgrounds' resident bear lover.
EvilJesus - [classified]
Evark - One of the more friendly, laid back mods.
Bees - Makes fun of furries and takes a lot of hate. Also raps with Slappy.
FatKidWitAJetPak - Wanna buy a watch?
Shauna - Third most awesomest female user of Newgrounds.
Gooch - Tainted, apparently, but one of the better former mods.
FUNKbrs - Pope of Hate and psychobilly band member.
BrokenPaw - LOVABLE FURRY PICTURE-POSTING FURFAG.
JadeTheAssassin - She fucks ninjas. Second coolest woman on NG.
SteelChair - Lovable rascal takes my hate and condenses it into tacos to eat.
DevourerJay - One of the handful of sorta older users who isn't a douchebag.
Strength - You should've grabbed his cock.
Ragnarokia - Posts yaoi and doesn't afraid of anything.
Grub-Xer0 - Everyone's favorite black user.
Drony - Drony the brony who will occasionally post a picture of a pony.
Uncool people! Hsssss!
FireWOLF109 - Not the brightest person on the BBS.
towellyfan - Looked like a jackass a number of times. At least he's improving.
Gobblemeister - He's so cool that he's uncool.
Bees - I dunno why he's here.
YouLostTheGame - She lost her coolness when she left. Good times were had until then.
BananaBreadMuffin - Former Nazi mod. I miss when he was crazy with that stuff.
Jon - wreckages was better.
SteelChair - Lame-ass.
Rage - Formerly RageVI. Cool until "VI" was removed from his username.
Pending
Jedi-Master
Scout's mom
Cocks.
HeavyMetalGuy
:c
.
Baranar
Incomplete list.
Also get on AIM.