In Long Live the Queen, Ullu tells Rani that Queen Janna wants to see the whole Night Pride and Kion.
In The Lake of Reflection, she alerts the Lion Guard of the latest attack by Makucha and co.
In Triumph of the Roar, she freaks out Smun and his prickle with one of her owl-only abilities.
In Journey to the Pride Lands, Ullu tells Queen Rani that she just saw a cheetah come through the mountain pass. It was Azaad leading Jasiri and Janja to the Guard.
In Return to the Pride Lands, she attends Kion's coronation as King of the Tree of Life.