Currently available on 2 streaming services.

Ex Machina - watch online: streaming, buy or rent

Currently you are able to watch "Ex Machina" streaming on HBO Go. It is also possible to buy "Ex Machina" on Apple TV as download or rent it on Apple TV online.

Cast

Domhnall Gleeson
Caleb
Alicia Vikander
Ava
Oscar Isaac
Nathan
Sonoya Mizuno
Kyoko
Corey Johnson
Jay
Claire Selby
Lily
Symara A. Templeman
Jasmine
Gana Bayarsaikhan
Jade
Tiffany Pisani
Katya
Elina Alminas
Amber
Chelsea Li
Office Girl (uncredited)
Dan Pappaspanos
Office Worker (uncredited)