- The river that runs through Riverclan territory goes all the way to Skyclan's gorge

- In the German version of Warrior cats, apprentices are called "Students" 

- Su Susann claims that Firestar had two brothers, Filou and Tommy, and two sisters, Luna and Princess, but this is NOT canon!

- Leopardstar thought that Tigerstar would be her mate if she made an alliance with him

- The Erins were gonna make a Warriors convention, but they realized it would be weird to have a bunch of kids in fur suits fighting