What follows is a buddy action-comedy that aims to terrify, too.

It mixes humor with that little bit of scare and also some heart, says Robinson.

And then wonder why as an adult would you let yourself pee your pants.

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Kevin Estrada/FOX

And you wont know if you peed your pants from laughing or from being frightened.

So, what scared the stars the most while filming theGhostedpilot?

Surely, freaky stuff abounded.

5.Dont tell anybody this, but Adams hair talks to me, says Robinson.

Its always disparaging my acting.

Not Adam; Adams very supportive.

But his hair is like, Dude, Im the real star here, you know?'

Im afraid of how I look in that outfit short-sleeved tucked-in shirt just for getting laid purposes.

Ive been working out, and Im not there yet.

And I certainly wasnt there when we filmed, but I still had to tuck my shirt in.

My legs are cool though.

Fantastic Looking by accident, and the whole place went quiet, says Scott.

You could hear a pin drop while we all waited for Craig to react.

But luckily he took it in stride, made it clear that it was okay.

So we got through that one, but it was pretty scary.

2.One day we shot and we went to lunch an hour late, says Robinson.

That was pretty scary.

I was wondering if we were going to eat.

1.Using real aliens and UFOs was intimidating at first, says Scott.

Turns out, theyre super down-to-earth!

Ghostedpremieres Oct. 1 on Fox.