With the versatile star now playing a steely-eyed synthetic on 'Alien: Earth,' we're looking back at his best genre roles so ...

Sydney Chandler, Alex Lawther, Essie Davis, Adarsh Gourav, Kit Young, Jonathan Ajayi, Erana James, Lily Newmark, Samuel ...

Alien: Earth introduces three forms of artificial intelligence, but what are the differences between synthetics, cyborgs, and hybrids?