Phil Klemmer revealed that the singing scene was recorded live on set, and Dominic Purcell (Rory) sang his line without rehearsal.
First Legends season finale to take place in the present day.
Behrad wears the same shirt under his jacket as worn by Zari in the S3 episode, "Here I Go Again".
In the DC comics, Adrianna Tomaz (Zari Tomaz's comic book equivalent) has a brother, Amon Tomaz, who goes by Osiris. He has a portion of Black Adam's powers every time he speaks his name, having been granted them by Black Adam himself.
Of the four Arrowverse season finales in which LaMonica Garrett appears as Mar Novu/The Monitor, this is the only one in which he has no dialogue.