“You’re going to have a full heart,” the actor assures.

But Ilovehow the story is unfolding and I love being a part of it.

So I’ll do it as long as they let me."

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Ron Batzdorff/NBC

The show’s big goodbye has actually been years in the making.

Hartley agrees with that assessment, noting: “I think it’s very unpredictable.”

Just like life, everything does end, doesn’t it?

It’s definitely an emotional journey, and we have a lot of laughs to be told in it.

I mean, there’s funny stuff coming up as well."

Speaking of which, here’s Hartley’s teaser for the finale.

“Milo told you about the spaceships, or no?”

“Can you imagine?