[Instead of asking 'why would my mom bring people here from places she doesn't even know?,' Henry just shakes his head.]

Nope. She has no idea how or why we're here. Oh, and when we leave, we won't remember. I've been here three times, and I don't remember. But people knew who I was before I ever met them.

[As for the other question...]

Emma and Rumplestiltskin. And people I don't know if you ever met: Robin Hood, Killian Jones, and my dad, Neal. His dad is Mr. Gold. Oh, and...there's Zelena...

['Rumplestiltskin' is too much to keep saying. And he trails off a little at Zelena's name.]