Formerly a witch, Scarlett Byrne now plays an alien

Beautiful breed: Scarlett Byrne as alien-human hybrid Lexi, in Season Four of Falling Skies.

British actress Scarlett Byrne goes from playing a witch in Harry Potter to an alien-human hybrid in Falling Skies.

Scarlett Byrne totally loves alien dramas, so it was only fitting that she landed the role of Alexis “Lexi” Glass-Mason in the post-apocalyptic series Falling Skies, which is currently in its fourth season.