There are some people who are nigh-omnipresent around here. Many have been here for some time, some plan to be here for much longer.

Who would you call the current "Main Cast" of SimplePlanes.com? Those who you have to at least sort of be familiar with to be closely integrated into the community.
Many have intricate identities, while others are just common human players, though this is less critical.
This does not require being online every single day, rather just being a frequent face of longtime importance (who doesn't look a day away from leaving forever).

A few I'd peg as the current core figures (in no particular order):
-Monarchii
-That Mosquito fellow
-TheMouse
-Saturn0
-LunarEclipseSP
-jamesPLANESii
-L1nus
-hpgbproductions
-MrSilverWolf
-qazedcujmyhn
-Rjenteissussy
-PPLLAANNEE(?)
-TheUltimatePlaneLover
-SILVERPANZER
-Majakalona
-Noname918181818181818181
-WisconsinStatePolice
-ShinyGemsBro
-Hiiamhere
-TheCommentaryGuy
-Graingy/Grain Guy (Me)
-Dissent3R(?)
-The villian I shall not name.
-LJh1
-KPLBall
-Nerfaddict(?)
-32(?)
-YarisSedan
-HuskyDynamics01
-Strucker(?)
-Panzerwaifu69
-Boeing727200F
-Axartar(?)

A break to show off this goofy ass pfp I came across:

JustPancake's

-Eagleman101SP
-TTL
-FlirBlitz(?)

And by this point I got sick of shifting through the Users pages. There are more.
Basically these are just people who I see around frequently, or are a core part of the community.
I've probably made a post like this before, but this is the current iteration.
A lot, eh?
I've definitely missed some, but these are the "must knows", I reckon. Who did I miss?