Another old romantic flame of the Winchesters will surface early in season 9.

The series has been speckled with the brothers many failed relationships. Episode 5 will see the return of one of Dean's (Jensen Ackles) old girlfriends, Robin, according to Spoiler TV. A waitress at a diner, the 30-something woman remembers the elder Winchester brother from a romance when the two were in their teens.

Director Kevin Parks began casting for the episode last Thursday, and shooting should begin in a few weeks.

In the last nine seasons, a wide array of females have captured the attention of the Winchester boys. However, any time Sam (Jared Padalecki) or Dean come close to having a stable relationship, the job inevitably catches up with them.

In season 1, Sam lost Jess (Adrianne Palicki) to the Yellow-Eyed Demon (Fredric Lehne) and Dean's hunting lifestyle twice pulled apart his budding relationship with Cassie (Megalyn Echikunwoke). While both brothers attempted to settle down during each others absences - Dean with Lisa (Cindy Sampson) in season 6 (see video below) and Sam with Amelia (Liane Balaban) in season 8 - neither could stay with the one they cared about.

While Robin may only turn out to be a one-off character, perhaps the episode will give some more insight into a younger Dean.

Supernatural returns on Oct. 8.

Tags: supernatural