First appearance of Amber Tamblyn as Jenny Harper
When Alan, Walden and Evelyn catch up to Jenny at the bus stop, the poster on the wall of the shelter displays information on bus route 534, which runs along the Pacific Coast Highway, from Trancas Canyon Road, through Malibu, to downtown Santa Monica.
In this episode a girl named Jenny (Amber Tamblyn) shows up saying Charlie was her dad. When she's telling Allen and Walden about her life she says she tried to become a doctor to make her mom happy. Amber Tamblyn played Dr. Martha M. Masters in season 7 of House M.D.