Kara brings Lena lunch from Big Belly Burger, which is also the fast food restaurant featured in Arrow (2012) and The Flash (2014).
President Marsdin mentions that, as a literal alien, her presidency is violation of the Article 2 of the Constitution. As outlined in said article, the three prerequisites to hold office are that one must be:
- A natural-born citizen
- At least 35 years old, and
- An inhabitant of the United States for at least fourteen years.
This episode confirms there's a Big Belly fast-food restaurant on Earth-38.
Eve joining Lena on the run from Mercy is a perhaps unintentional nod to Lena Luthor, Eve Tessmacher, and Mercy Graves being combined into the composite character Tess Mercer on Smallville (2001).
Brent Spiner was originally cast as Vice President Baker, but had to step down due to a family emergency and was replaced by Bruce Boxleitner.