Trivia: The Borgias
- Actor Allusion: Jeremy Irons playing a priest.
- Dawson Casting: 23-year-old Holliday Grainger plays Lucrezia, who's 14 in the first episode. 18-year-old Cesare is played by 25-year-old Francois Arnaud, 33-year-old Emmanuelle Chriqui plays a teenage Sancia, and 18-year-old Giulia Farnese is played by 29-year-old Lotte Verbeek (though this last may count as Age Lift; Giulia's age is glossed over to the point where the only thing made clear is that she is much younger than Rodrigo).
- Giulia's almost definitely an Age Lift. It's made pretty clear that she's been married to her husband for a good long time—long enough to conceive a child and learn the ways of court and men, as well as politics, on some level. She's definitely not eighteen, and probably isn't supposed to be a teenager, either. It's likely that the characterization is a combo of the real Giulia and Adriana da Mila, Lucrezia's real-life governess/mentor-type figure and a cousin to the Borgia family.
- Fan Nickname: Ursula is commonly known as "Squidward" within the fandom. Rodrigo is often referred to- with great affection- as "Papa Pope".
- Fake Nationality: Hoo boy. We have Brits playing Italians (Derek Jacobi, Sean Harris, Julian Bleach), Brits playing Spaniards (Jeremy Irons, Holliday Grainger, David Oakes, and Joanne Whalley), a Brit playing a German (Simon McBurney), a Dutch woman playing an Italian (Lotte Verbeek), a Canadian-American playing an Italian (Colm Feore), a Lithuanian playing an Italian (Ruta Gedmintas), a French-Canadian playing an Italian (Emmanuelle Chriqui), and a French-Canadian playing a Spaniard (Francois Arnaud).
- Hey, It's That Guy!: The entire damn cast.
- Jeremy Irons is Rodrigo.
- The Fifth Master is Orsini.
- And Davros is Niccolo Machiavelli.
- President Adar/The Lord Marshal is della Rovere.
- Ruby is Lucrezia.
- Arthur Leyton is Micheletto.
- With Shaz Granger as Maria.
- Princess Sophia Grimaldi is Vannozza.
- Sloan is Sancia.
- Bessie Blount is Ursula Bonadeo.
- Frederick "Freddie" McClair is Paolo.
- Cicero is Theo.
- And Lepidus is Giovanni Sforza.
- Juan is played by William Hamleigh.
- Judy Molloy is Caterina Sforza.
- Although now mostly famous for his portrayal of Cesare Borgia, Canadians and francophone LGBT people outside Canada may have recognised François Arnaud from his part in Xavier Dolan 's first film, "I Killed My Mother" as the boyfriend of protagonist Hubert (arguably Xavier Dolan's Author Avatar). Especially of note is a certain scene that involves redecorating a certain room with a fair amount of paint, to a lively Belgian synthpop tune called Noir Désir (no, not that one). You're welcome.
- Lying Creator: If you look at the record, the show runners were this in spades. In two of the more notable examples, they said that they wouldn't go into the Banquet of the Chesnuts because it would be too much "even for Showtime." They did. Then they said they wouldn't go into the Cesare and Lucretzia incest before doing it as well.
- Playing Against Type: Ronin Vibert, known for playing the pathetic and timid Lepidus on Rome, plays Lucrezia's rapist husband Giovanni Sforza.
- Screwed by the Network: Showrunner Neil Jordan had originally planned for the show to last for four seasons like The Tudors. So when Showtime announced that season 3 would be the last, there was an outcry from fans. Jordan later revealed that he had proposed to make a two hour film to wrap up the storyline and give the show a Grand Finale, but Showtime declined, citing high production costs.
- What Could Have Been: It was originally supposed to be a film, simply titled "Borgia", with Colin Farrell and Scarlett Johansson as Cesare and Lucrezia, but funding fell through. Director Neil Jordan eventually found the money with the Showtime network, and thus a series was born.
- Both Jeremy Irons (Rodrigo Borgia) and Colm Feore (Cardinal della Rovere) have played Tom Hiddleston's father at one point or another- Irons as Henry IV to Hiddleston's Prince Hal in the BBC's 2012 adaptation of William Shakespeare's Henriad, and Feore as Laufey to Hiddleston's Loki in 2011's Thor.