15 Facts About Diane Whittlesey

Diane Whittlesey is a CO in the Oswald Maximum Security Penitentiary, but repeatedly explains that this is because she can't find work anywhere else.

Diane Whittlesey's only drive is taking care of her mother, who has cancer, and her young daughter, whom she has to raise all by herself.

Diane Whittlesey is one of the few characters to have a happy ending to their series arc.

Diane Whittlesey is introduced as the supervisor of the guards in Emerald City, Unit Manager Tim McManus' experimental cell block, first seen when a new group of inmates, including Tobias Beecher and Miguel Alvarez, arrive at Oz.

Diane Whittlesey helps to keep prisoners' records and to stop any conflicts between inmates.

Diane Whittlesey was a biker on the outside and used to be in the same gang as Whittlesey's ex-husband.

Diane Whittlesey agrees reluctantly, but is quickly discovered by McManus.

When Miguel Alvarez attempts to patch-up two severely-injured guards, Diane Whittlesey reveals she used to be a volunteer nurse and offers assistance, which is ignored.

Glynn convinces Case that Diane Whittlesey is the best guard he's ever had, that she is struggling to make enough money, and that punishing her for taking Ross' life is not worth ruining hers.

Diane Whittlesey turns the tables against him and sets him up to be charged with conspiracy to commit murder.

Diane Whittlesey admits to him that she did do it, but only because Ross shot him first.

Diane Whittlesey continues to work in Unit B, and finds another female correctional officer working with her, Officer Claire Howell.

Diane Whittlesey takes McManus' side, and the two grow close again throughout the ordeal.

Diane Whittlesey's vacation was supposed to be finished, but she never came back to Oz, much to McManus' disappointment and agitation, since he intended to propose to her upon her return.

Diane Whittlesey's departure was written into the show as Edie Falco had been offered the role of Carmela Soprano on The Sopranos.