- Randy Cunningham makes up the same name when dealing with Catfish Booray in "Swampy Seconds," yet he doesn't know that there's a real Ranginald Bagel until "Bring Me the Head of Ranginald Bagel!."
- Ranginald thinks he's a successful stand-up comedian, but is really considered by his fellow classmates as merely the most annoying kid in school.
- Ranginald Bagel is voiced by comedian Gilbert Gottfried, who also voiced Iago in Disney's Aladdin and Technus in Danny Phantom, among others. Ranginald's character design resembles Gottfried's real-life appearance.
- Since "Bring Me the Head of Ranginald Bagel" Ranginald has not had a speaking role.
- In Bring Me the Head of Ranginald Bagel! where Ranginald appear in this only episode without his Backpack.