List of Character shared and/or special cases:
Since most of us regulars share several characters with each other I have decided to group them.

Users that share character(s) with FoliFF:
Charly: Ichinose Kotomi, Kotoura Haruka
kokiriloz: Kusanagi Motoko, Suu (Monster Musume), Esdese/Esdeath (Akame ga Kill)
Stealthbird97: Kanbe Kotori, Senri Akane
Flandre93: Tohsaka Rin
Wiresetc: Ayukawa Tenri
vf.nightcore: Taihou (kancolle)
Zolxys: Tachibana Kanade

Users that shares character(s) with otaku_emmy:
Cade: Ichhi Tooru, Arima Senne
kokiriloz: Murasa Minamitsu
Freenight: Isolated Island Oni of Kancolle, Musashi (KanColle), Kino (Kino no Tabi), bou nin (Artist)
Kiho: Nyanta (Log Horizon)

Shares between more than two people:
Bismarck (Kancolle): kokiriloz + ArthurS91 + FoliFF
Prinz-chan: kokiriloz + ArthurS91 + FoliFF
Tsutsukakushi Tsukiko: FoliFF + kokiriloz + ArthurS91
Vanilla (sayori): FoliFF + otaku_emmy + anpan
Hatsune Miku: Everyone in konaland.

User stuff:
SarahNL(User): Charly + kokiriloz

The rest of the share list:
Hanekawa Tsubasa: Cade + SciFi
Ayase Yue: Charly + Zolxys
Hatsuse Izuna: Anpan + kokiriloz
Sento Isuzu: Artwork + Charly
Shibuya Rin: Charly + Flandre93
Fremy Speeddraw: Freenight + Anpan
Seaport-hime (Kancolle): Anpan + Freenight
Ia (Vocaloid): vf.nightcore + mattiasc02
Hikage: Black_Rock_Shooter + Shaggy410
Ikamusume: Black_Rock_Shooter + Shaggy410
Kanzaki Kaori: Stealthbird97 + Freenight