The conversation between Eliot and Maria calls back to 'Leverage' recurring characters FBI Agents McSweeten and Taggert, first introduced (per shooting order) in "The Wedding Job" (in episode airing order they first appeared in "The Bank Shot Job"). Maria says that Todd McSweeten is now the Head of the FBI Counter-Terrorism Division and Agent Taggert is now FBI Deputy Director.
Hardison quotes "Come with me if you want to live" from the first two Terminator movies. When he says it he's standing in a position similar to the Terminator's in the second movie.
"Sophie, when we met, you were lost in grief. And I didn't know it then, but I was too. And you saw that and you helped me," Harry Wilson. "Well, you helped me too. They are my family, but they're used to seeing me in a certain way, as Sophie Devereaux. You see me as I could be, and I'm going to miss that," Sophie Devereaux.