u/FrostyReVo

https://preview.redd.it/quy5j7n3pgzg1.png?width=1191&format=png&auto=webp&s=8f7d8ae967186a303243f36875f4a77ad2b9098d

At 39:30 when Eliot speak with Mr.robot in background.

He isn't Mobley.

Edit:

This was the actor that played Mobley at episode 1.

https://www.imdb.com/name/nm3980868/