Daryl is one of Aero's friends. He spends time hanging out with Aero at a bar when they get done with the circus. He always wanted to help Aero save the circus but he usually stays to keep an eye on things because Tumble already travels with Aero and Alice on adventures. He also spends time with Ariel.
Daryl is known as a magic bat but he only uses it for shows so that he doesn't hurt anyone.