In the Blue Bloods episode “Erasing History,” grandpa Henry Reagan (Len Cariou) is the key witness on a hit and run case. While Danny (Donnie Wahlberg) promises to find out who was behind the wheel, Henry pokes his nose around as if he’s still on the force. Henry’s poking drives Danny crazy…until Henry leads Danny to valuable information. Meanwhile, Nicky (Sami Gayle) shocks every Reagan off their seat when she defends her activist friend Chrissie for defacing the NYPD flag at One Police Plaza.
Chrissie Watkins is portrayed by Naian González Norvind. Last time we saw Chrissie on Blue Bloods was in the 2015 episode “Backstabbers.” Norvind is also known for her roles on Gotham (Alice Tetch), and in the films The Devil You Know (Abigail Parris) and Everybody’s Got Somebody… Not Me (Maria), among others. Blue Bloods airs Fridays at 10pm on CBS, right after Hawaii Five-0.