The episode marks the formal debut of Mr. X, a flamboyant and high-tech government secret agent voiced by RuPaul Charles.
Elliot and Mr. Robot stop fighting for control and begin working together as a team to undo the "Five/Nine" hack. [S3E10] Mr X
There are two major pop culture references for titled or involving a character named " Mr. X ." Amphibia: "Mr. X" The episode marks the formal debut of Mr