I know of at least one... once Littlefoot's been saved by Doc after slipping on the rotten log, he looks up to him and says, "It-it's you! I mean you're here! I mean...who are you?". In LBT 7 once Pterano arrives with Sierra and Rinkus, Ducky asks after Pterano promptly twats them in the face for talking too much "Who are THEY?" but not...who are you...