Marl

"...That tree has got it coming."

 is a tree keeper for the village. They seem to hold a nasty grudge against the tallest tree in the village - having fallen off of it in their youth - and many of the village people work to prevent them from cutting it down.

Initial Conversation

 * "So it's launch day, huh? Hal's going to miss you. Speaking of launch day... I was thinking about it, and the platform those ships launch from is getting old. Isn't about time you built a new, less flammable one? That big tree in the village would be the perfect choice. I wouldn't mind helping out the space program. Just say the word!"
 * >The current launch pad is fine, thanks.
 * "Oh. Really? Dang. Well, maybe someone needs a new porch or something. A big one."
 * >Nice try. We all know you have it out for that tree.
 * "What? No, I just think it's in the way and someone ought to chop it down, you know? Specifically, me. ...Haha, you think this has to do with the time I fell out of it and broke my arm? That was when we were hatchlings! Who would hold a grudge for that long?"
 * >The launch pad is FLAMMABLE?!
 * "Ha! You didn't realize that? Don't worry, it's held up for all the launches so far. It'll definitely be fine for yours. Probably."

If talked about the tree

 * "...That tree has got it coming. If you swing by the moon, say hi to Esker for me."

After going to space

 * "What are you doing back? Did you forget your spacesuit or something?"