Jane Chatwin enters a closet doorway to Fillory in episode 1x08 "The Strangled Heart". Alice, Eliot, Quentin, and Penny head to the Plover family mansion to search for the magic button in episode 1x09 "The Writing Room". The gang enters The Wellspring and finds themselves in Martin's recreation of the mansion in episode 1x13 "Have You Brought Me Little Cakes?". Appears in 1 more episode.
Richard brings Julia to help Kiera in episode 1x09 "The Writing Room".