Winn says to James, "What is the point of having all those muscles if you can't pry open a plastic box." This is an allusion to Alfred saying the same about lifting a log in 'Batman Begins'.
The character Non is originally one of General Zod's followers.
Cat's estranged son lives in Opal City. In the comics this is the hometown of the superhero Starman.
Cat Grant describes board member Dirk Alexander as "the embodiment of white male privilege." The actor who plays Alexander also appears on the sitcom Blackish, where he plays Mr Stevens, a character who functions as an example of white male privilege.