In the scene where the family convenes on Main Street before seeing "Great Moments with Mr. Lincoln," there is a line of Disneyland cast members guarding the street behind them, and you can clearly see in the background of several shots actual starstruck Disneyland guests watching the cast filming. These cast members are often deployed for crowd control purposes for when film and television scenes shoot in the parks.
The mother whose twins get tangled in Lily's tether is the same actress who plays Shirl Chambers (Sarah Baker) in later seasons.
Alleged murderer Lori Vallow Daybell, her son Colby Ryan and daughter Tylee Ryan (whom she is accused of killing) appeared as extras. A family member worked on the series and invited them to do so.
Sarah Hyland (Haley Dunphy) and Matt Prokop (Ethan) starred together in Disney Channel original movie Geek Charming (2011).
Sarah Hyland (Haley) & Matt Prokop (Ethan), & Julie Bowen (Claire) started together in the 2011 film "Conception"