-Pinestar had two brothers that never made it to be warriors, though I don't know their names.

-Heatherstar and Hawkheart are siblings.

-Crookedstar's Promise originally depicted Crookedstar with a crooked jaw, but it was found as too unappealing and changed.

-At the end of Bluestar's Prophecy, Bluestar says to Redtail "I have led four good lives", then mentions to herself that it was actually seven, she had only two left to lose. This makes no sense, because she loses three lives in the Original Series.

-There's a rumor going around (though it's most likely to be untrue) that Honeyfern would've named her kits Lightkit, Goldenkit and/or Duskkit.