Reena is a she-cat.
In Tallstar's Revenge, when Palebird explains to Tallpaw about some of WindClan's visitor's names, she explains that Bess and Algernon were kittypets once, and Bess gave Reena her sister's name. At the mention of her sister's name, Bess comes over to the queen.
- Her niece is named after her.
= Gender Unknown
- Tallstar's Revenge (First appearance; mentioned only)