On August 9th, the Attack On Titan Character Directory Guidebook supplement was released in Japan. This featured author Hajime Isayama discussing the backgrounds and development of his characters. Much of the talk on development was addressing how they played with or against certain types. And, for his comic relief, one of the interesting bits of trivia was that Sasha “Potato Girl” Blouse was named after comedian Sasha Baron Cohen.
Historia, Ymir and Sasha: Character Creation Part 3
— Attack on Titan Wiki (@AoTWiki) August 16, 2017