Warning: the following contains spoilers for FBI season 7, episode 14, “Hitched.”FBI original cast member Zeeko Zaki addresses Special Agent OA Zidan and Gemma’s (Billions’ Comfort Clinton) relationship after the hijacking. Season 7, episode 14 “Hitched,” sees OA and Gemma travel to Niagara Falls for vacation but find themselves in a train hijacking situation. OA works with Maggie to safely get the two of them off of the speeding train.