Hello and welcome! I'm J (berseria) and I have five characters, dear god.
Gillian Goodwin (chiburui) is a 36yo Samurai (with a little bit of Monk and Archer thrown in, but she will always consider herself a swordslinger foremost), commander of the Black Lions mercenary company, and former mentor to Rivalen! In a nutshell, she's on pretty good terms with Riv, and is known to be accepting wrt Fell Knights in her group (see: Lutheria), so maybe something here~?
Theodore Finch (escutcheon) is a (almost) 30yo Knight/Berserker, member of the Emillion Knights of the Peace, grumpyfaced nobleman and also acquaintance of Rivalen. She could know him as well, srs faces unite etc. He's also pretty neutral wrt Fell Knights (!), considering his recently departed bff was of that class as well.
Guy Lenard (inspirers) is a 33yo Synergist Mage, member of the guild's Mage Taskforce, pseudo-ranger, and some other things too--but mostly, he's a friendly mage who makes for decent back-up in hairy situations. He travels the outlands quite a lot, maybe the two have run into each other?
Almalexia Lliryn (arithmeticks) is a 22yo church mage + arithmetician, academic and do-gooder. She lives at the monastery with the rest of the Pharist types, so probably wouldn't know much of Scarlet all things considered...but I am open to random things always. :x
Mathieu Rozenkatz (flauto) is a 26yo bard, celebutante council member for the Bards Guild. He is a Very Public Figure, and so while he is a bit hesitant about the Fell Knight thing (D8) would definitely try to be as friendly as he usually is. AND OMG HE IS RIV'S FUZZY LITTLE MAN PEACH FRIEND, HAHAHA so yes, totally open for encounters there if/when she ever discovers their friendship.