During many of the early episodes of “Alien: Earth,” David Rysdahl hovered in the background of scenes, concentrating on his job as lead technician for the Prodigy program. He didn’t drop into ...

During many of the early episodes of “Alien: Earth,” David Rysdahl hovered in the background of scenes, concentrating on his job as lead technician for the Prodigy program.

There was a method to David Rysdahl's scientific moves as Arthur in "Alien: Earth." The actor talked with technicians who could guide him playing a behind-the-scenes operator. David Rysdahl and Essie ...