Star Wars Jedi: Survivor writer explains how BD-1 became the story's "emotional cornerstone"

gamesradar.com:

The lead writer for Star Wars Jedi: Survivor has shared just how important BD-1 is to the series, as well as what lengths developer Respawn went to bringing the droid to life.

In a blog post (opens in new tab), Danny Homan, the lead writer of Star Wars Jedi: Survivor, gave an insight into the sequel's development as well as explained just how important Cal's trusty sidekick is to the character's story. As explained in the post, BD-1 actually went through the same motion capture process that Cal's actor Cameron Monaghan did when developing the games. 

I'm sure you're wondering, how the heck did the team at Respawn get a tiny robot to act in the mocap suite? Well, they didn't. BD-1 was instead played by actor Gideon Emery who used a cardboard replica of the droid along with a nose flute to create the character's beeps and boops - there's a photo of what this looks like in the linked blog post above. 

"Why do we have an actor playing BD in the first place? BD's only lines are beeps and boops, right?", Homan says in the post, "to the writing team, BD is a main character - and on set you need to have an actor thinking through a character’s motivation in every scene, or else you might miss an opportunity."

"Gideon provides on-set beeps and boops, so our other actors can hear BD's reactions live. When we write BD beeps in our scripts, we always provide the general intent of his reaction." The post continues, "Gideon, holding a replica of BD, would follow Cameron, playing Cal, around the set, whistling and providing reactions, some scripted, some not. This gave BD a presence as one of the crew and an equal among the cast."

If you've already played Jedi Survivor or Star Wars Jedi: Fallen Order, you'll already know how important