Cassie Campbell

Cassie Campbell is a recurring character who appeared in Season Twelve of Criminal Minds as the new caretaker of Diana Reid.

Background
Absolutely nothing is currently known about Cassie's background, other than she became a caretaker. She was hired by Spencer Reid due to the mental instability of his mother Diana, who was suffering from both paranoid schizophrenia and Alzheimer's disease. Earlier, Spencer made attempts to cure Diana of her Alzheimer's by entering her in groundbreaking clinical studies set up to combat the condition. Diana was one of the participants cut from the first study due to unexpected budget restraints, while Spencer chose to take her out of the second one because the experimental medicine apparently didn't work.

Surface Tension
Cassie arrives at Spencer's apartment, where Diana is staying, and greets both of them. However, Diana refuses to say hello to her and locks herself in Spencer's bedroom. Despite this, Cassie agrees to take care of Diana. As a precaution, she asks Spencer about any medication Diana is taking. He tells her about the medication he has been giving to treat Diana's schizophrenia and Alzheimer's, but refrains from revealing the experimental medication to her. She thanks him and leaves the apartment.

A Good Husband
During a case in Palm Springs, California, involving the discovery of male torsos, Spencer calls Cassie, asking for an update on his mother's progress. Cassie tells him Diana is doing fine, then advises him that she would be in a better state if Spencer were home taking care of her as well. Distracted by his current task in finding the unsub, Spencer quickly ends the conversation and hangs up.

Appearances

 * Season Twelve
 * "Surface Tension"
 * "A Good Husband"