BT-1 assassin droid

"All this effort for a simple astromech?" Not exactly. This is a Blastomech prototype. Does enough to pass as an astro, but it's primarily a cover. It's a specialized assassin droid."

- Darth Vader and Aphra talking about BT-1.

BT-1 assassin droids were a type of assassin droid that were designed to look like ordinary astromech droids.

Appearances

 * Star Wars: Darth Vader 3: Vader, Part III