Detective Diana Ballard
|Episode(s)||2.07 The Usual Suspects|
Believing Dean to be a killer, Diana Ballard and partner Pete Sheridan arrest and interrogate Dean and Sam in Baltimore. Diana begins to believe the brothers’ story of the supernatural when she is visited and warned by the death omen Claire Becker. She learns that her partner and lover Peter is a liar and a murderer who is trying to frame Dean for two murders he himself committed. With the new knowledge of her partner and of the supernatural she decides to let the brothers go.