That was the first bit of information I got, actually, he says.

David is so curious.

I wanted Walter to be more Spock-like, says Fassbender.

Alien - Michael Fassbender

Twentieth Century Fox

More devoid of the human characteristics or emotional content that is programmed into David.

I wanted him more like a blank canvas.

Hed play either character off that.

And then wed block out David and hold that really tight.

I thought,oh shand stuck a piece of cellophane in the air pipe.

As for what comes next for David and theAlienfranchise, Fassbender remains discreet.

I dont really ask Ridley too much.

I dont press him too much!

Hes been doing great so far.

Alien: Covenantis out now.