Guest Stars Juliana Canfield as Talia Thompson Dominic Burgess as Hamish Moss Debra Monk as Virginia Harding Reed Birney as Dexter Harding Sr. Ashlie Atkinson as Susan Leslie Grossman as Ashleigh Billie Lourd as Ashley Zo Tipp as Theo Grace Gummer as Margaret Alcott Carter Hudson as Ned Alcott Jenny Allen as TBD Co Starring David Healy as Doctor