myrtle is the one in black and red, johnathan in blue and orange, and i've already introduced celeste several times before.

myrtle is a librarian who moonlights as an assassin. she really likes vampires.
johnathan runs a charity hospital for criminals, he's a nurse.
celeste is... him. werewolf bounty hunter. (as in he is the werewolf, not the one hunting them)

they're friends.