Peyman Moaadi and Poorna Jagannathan, who play Naz's parents, are 12 and 10 years older, respectively, than Riz Ahmed, who plays Naz.
The episode won 2 Emmy Awards for Outstanding Sound Mixing for a Limited Series or Movie and Outstanding Single-Camera Picture Editing for a Limited Series or Movie.
John Turturro (top-billed actor) doesn't appear on screen until 1 hour and 4 minutes into the episode.
The character of Naz is supposed to be 23 years old. Riz Ahmed was 34 when he made this mini-series.
This was originally meant to star James Gandolfini before his untimely death put paid to that. HBO had originally nixed the project but reconsidered following Gandolfini's passing as a tribute to the actor. Robert De Niro was set to replace him. Scheduling conflicts meant that de Niro had to drop out and was replaced by John Turturro.