S4, Ep 4: Circus of the Epidurals. Susan asks Sally to be her birthing partner at the antenatal classes, but Sally is nervous herself and asks one of the gang to go with her in support. Needless to say by the end of it all of them are at the class, where a face from the past surprises them in the shape of Jill, Jane's former psychologist. Starring Sarah Alexander, Kate Isitt, Jack Davenport, Ben Miles, Gina Bellman, Richard Mylan, Elizabeth Mamur, Olivia Caffrey, Eve Marie Bryer and Dan Renton Skinner.