The same actor who plays Phineas (Gibbs neighbor) in season 17 of NCIS plays Joelle Taylor's son Peter.
The episode title "Fool Me Twice" is an allusion to the quote, "Fool me once shame on you, fool me twice shame on me".
The role of Joelle/Beth's husband has been recast from the season 8 episode Getaway (2017). In that episode, he was credited as "Handsome Man" and played by Mark Simich . Here, he's given the name Nick and played by Andrew Bowen . It is difficult to tell if her son (Peter) was also recast as the actor from "Getaway" is uncredited.