The only people on the JR are Regina, Rumble, Snow, Emma, and David or and of course Hook.
Rumble is connected to everyone, Snow had the bad fairy dust and had the sign in the yard of Tink, Regina mention to Rumble about a mermaid problem and also Emma let it slip at the convention that Regina has been to NL. As for David we are suppose to get his back story but I doubt it if Tink is tied to him. This leaves Emma, according to the PP story fairies are born with a child’s laugh right so perhaps that is the connection who knows.—I still think it is Regina, original I thought it was Snow.