Yaratıcılar:
Brit Marling
Zal Batmanglij
Oyuncular:
Brit Marling - Prairie Johnson/The OA/Nina Azarova
Emory Cohen - Homer
Scott Wilson - Abel Johnson
Phyllis Smith - Elizabeth "Betty" Broderick-Allen
Alice Krige - Nancy Johnson
Patrick Gibson - Steve Winchell
Brendan Meyer - Jesse
Brandon Perea - Alfonso Sosa/French
Ian Alexander - Buck Vu
Jason Isaacs - Dr. Hunter Hap
Nikolai Nikolaeff - Mr. Azarov
Riz Ahmed - Elias Rahim