Sara Bareilles (Jenna), NaTasha Yvette Williams (Becky), Evelyn Hoskins (Dawn), Gavin Creel (Dr. Pomatter), Joel Montague (Ogie), Richard Taylor Woods (Cal), Andrew Boyer (Joe), Tamlyn Henderson (Earl), Rosemary Nkrumah (Nurse Norma), Lucia De Wan (Lulu), Olivia Moore (Francine Pomatter), Laura Selwood (Mother), Piers Bate (s/w Father), Matthew Rowland, Monique Ashe-Palmer, Sarah O'Connor