Guest Stars Michael Cumpsty as Mr. Grainer Nikki M. James as Alexa Nora Dale as Gabby Arteta Karen Aldridge as Regabhi Co Starring Marc Geller as Kier Eagan Claudia Robinson as Felicia Rachel Addington as Elizabeth Ethan Flower as Angelo Arteta Cassidy Layton as June Kilmer Julian Michael Caiazzo as Lead Singer Jonathan Iglesias as Guy at Venue Margaret Chardiet as Bass Blaze James Gorman as Dylan's Son Tye Miller as Guitarist Griffin Stanton-Ameisen as Waiter Charles Henry Wood as Drummer