Byakuya is an arrogant young adult who originally saw himself to be more superior then the others due to being the heir to an extremely successful family business. He is often cold, blunt, and reserved, but he has a strong sense of responsibility and leadership. 

His official English voice actor is Jason Wishnov.

Byakuya's voice should have a confident, somewhat regal feel to it.  As the victim of this trial, he will have very few lines. However, he is still an important role. 

Byakuya Togami: B-Yah-Koo-Yah Toh-Gah-Mee