Mike White Creator F. Murray Abraham Bert Actor Jennifer Coolidge Tanya Actor Adam DiMarco Albie Actor Meghann Fahy Daphne Actor Beatrice Grannò Mia Actor Tom Hollander Quentin Actor Sabrina Impacciatore Valentina Actor Michael Imperioli Dominic Actor Theo James Cameron Actor Aubrey Plaza Harper Actor Haley Lu Richardson Portia Actor Will Sharpe Ethan Actor Simona Tabasco Lucia Actor Jon Gries Actor Leo Woodall Actor David Bernad Executive Producer Nick Hall Executive Producer Heather Persons Producer John M. Valerio Producer Todd Brown Producer