* ActorAllusion: In 3.5 ''Application'd'', Zaboo can be seen wearing a [[http://www.effinfunny.com/legend-store?id=1 ''Legend of Neil'' shirt]]. ''WebVideo/TheLegendOfNeil'' is another web series, created by Zaboo's actor, Sandeep Parikh. There are at least two [[WebVideo/DoctorHorriblesSingAlongBlog Dr. Horrible]] references: Riley calling Zaboo "Bad Horse," and Codex putting up her fists while referring to "hammers." Also, Codex owns a frozen yogurt maker; in the musical, froyo was an important symbol for Penny and Billy's relationship.
* ActingForTwo: Tink's twin sisters Tara and Lara were originally supposed to be played by twin actresses but due to a scheduling snafu, they had to hire one of the extras to play both parts. And she had no acting experience.
** FeliciaDay definitely knows what she's writing about. Even people who don't play games but spend a lot of time online will recognize the character types.
** And do we even need to talk about Creator/WilWheaton and his massive geekitude?