M(X) means mastered by X. If this mention is not present, then the character has been played outside of the group.
My (1) characters:
Rock gnome wizard M(2)
Lightfoot halfling rogue/cleric M(2)
Human aristocrat/sorcerer M(5)
Forest gnome druid M(2)
Human sohei M(5)
My (2) brother's:
Grey elf ranger/rogue/wizard (ranger 1, of course

) M(1)
Half-celestial lightfoot halfling wizard (IIRC)
Yuan-ti tainted one bard/psychic warrior
Air genasi wizard
Half-drow psychic warrior
Human sorcerer M(5)
Human samurai/sohei (?) M(5)
The group's girl (3):
Half moon-elf bard M(2)
Wood elf paladin (!) M(1)
Human fighter/psion M(2) dead, raised, and retired, replaced by:
Moon elf psion (!) M(2)
Human hunter (sort of ranger/rogue class for a prehistoric setting) M(2)
Human monk/sorcerer M(5)
Human samurai/rogue M(5)
Another player (4) in the group:
Lightfoot halfling rogue M(2)
High elven cleric M(1) dead, not replaced
Human monk M(2), dead and replaced by:
Shield dwarf fighter/bard M(2)
Human hunter (see above) M(2)
Human bard M(5)
Human wu-jen M(5)
And the last player (5):
Half-drow monk M(2)
Mountain dwarf fighter M(1)
Moon elf ranger M(2) dead and replaced by:
Human cleric M(2)
Human warrior (sort of fighter/barbarian in that prehistoric setting) M(2)
You're free to look for bias here. I know I am biased toward gnomes, and the girl is biased toward elvenkin (preferably with classes that I find odd for an elf, like psion or paladin

).
Both campaigns mastered by the last player in my list are human-only.