Episode title anagram is "they invoke fear"
Jamie Alexander and Luke Mitchell have both appeared on Marvel's Agents of S.H.I.E.L.D. - Alexander as Asgardian Lady Sif and Mitchell as Lincoln.
The team is told to go to Prospect Park, which is in Brooklyn, yet they somewhere are shown arriving at Washington Square Park, in Manhattan.
Archie Panjabi (Nas Kamal) & Ed Moran (Robert Kingston) also worked together on episode 3.14, Another Ham Sandwich (2012), of The Good Wife (2009) as Kalinda Sharma & Jasper Cannon respectively.
Archie Panjabi (Nas Kamal) & Nancy Ellen Shore (Former FBI Director) also worked together on three episodes of The Good Wife (2009), as Kalinda Sharma & various small parts respectively.