Trivia: Kamen Rider Faiz
- Hey, It's That Guy! - Shuji Mihara is Go Green.
- And in Paradise Lost, Shozo Iizuka, Gorō Naya, and Kato Seizo all make appearances as the three executives behind Smart Brain.
- Smart Lady was Shimada from the previous series.
- The young version of Mari Sonoda was Aoi Yuuki. Yep, Mari is a magical girl.
- Apparently Rei Suzumura was an Orphenoch before becoming a Makai Knight.
- Before being a jerk to Yuji, Chie was a time traveler sentai ranger.
- Name's the Same: Naoya Kaidou shares a family name with Kaoru Kaidou from The Prince of Tennis - who, funnilly enough, has the nickname "Mamushi" (Viper) whereas Faiz's Kaidou is the Snake Orphenoch.
- What Could Have Been: There are few elements that never made it to final production. Like three unused riders◊.