To add to LB’s list:
Little Froggie is the resident hidden tzaddik who actually has a life but occasionally deigns to share his wise words of wisdom with the masses
Yekke2 is the resident Yeshiva Bochur who, B”H, is busy shteiging most of the time and only joins the CR during bein hazmanim on his heavily filtered computer (definitely no smartphones c”v for him). He is responsible for many of the halachic discussions that take place in the CR, and he can be recognized by his British tact and politeness. He generally tries to steer clear of arguments and knows how to get along with all types of people, but if c”v, anyone says anything against the Torah or Gedolei HaTorah, he will become like Pinchas, defending Kavod HaTorah full-force. He is amongst the most intelligent posters and approaches things from a Torah perspective.
Daas Yachid has a dry sense of humor and is very good at getting to the point in a few words. He is also very good at seeing the point (which often eludes most posters as they get tangled in arguments that have nothing to do with the discussion at hand) in the first place. He is also one of the best at approaching things from a Torah perspective and although quite nice, will stand up for Kavod HaTorah when necessary.