Lena Dunham Hannah Actor, Writer Allison Williams Marnie Actor Jemima Kirke Jessa Actor Zosia Mamet Shoshanna Actor Adam Driver Adam Actor James Le Gros Jeff Lavoyt Guest Star Kathryn Hahn Katherine Lavoyt Guest Star Christopher Abbott Charlie Dattolo Guest Star Andrew Rannells Elijah Krantz Guest Star Christina Kirk Reese Guest Star Jorma Taccone Booth Jonathan Guest Star Clare Foley Lola Lavoyt Guest Star Mackenzie Grey Beatrix Lavoyt Guest Star Julian Osti Julian Guest Star Judd Apatow Executive Producer Jennifer Konner Executive Producer Ilene S. Landress Co-Executive Producer Bruce Eric Kaplan Co-Executive Producer