* ActorAllusion:
** This isn't [[Film/FantasticFour the first time]] Creator/MichaelChiklis has been a super-tough superhero. It's also the third time he played someone who [[Series/TheShield worked for the police]].
** This isn't the first time [[Series/HumanTarget Katie]] has been a comic-book loving sidekick in a superhero-ish universe.
** After being startled by a home invader in the shower, Stephanie says she'll be taking baths from now on. [[Series/{{Dexter}} That may not turn out so well]].
* TheDanza: Jimmy Bennett as Jim Junior "JJ" Powell.
** For now, Josh Stewart as the Watcher's (Joshua) current alias.
* DawsonCasting: Averted with JJ. Played straight with Daphne. JJ's actor Jimmy Bennett is the same age as the character he's playing. Kay Panabaker as Daphne, on the other hand, is a 20 year old playing a high school sophomore.
* HideYourPregnancy: Autumn Reeser, who plays Katie, was pregnant while the show was on. This was hidden behind desks, lab coats, etc. until the second to last episode when it was written in.
* RealitySubtext: Autumn Reeser (Katie's actress) was pregnant in real life at the time, and her pregnancy was worked into Katie's character after Katie got knocked up by Josh.
* SoMyKidsCanWatch: Creator/MichaelChiklis mentions this as a reason for being on the show during an interview on Good Morning America (9/28/2010).