Mr. McCaffrey is the father of Meg McCaffrey.
At one point Mr. McCaffrey met and had a relationship with Demeter, the Greek goddess of the harvest and agriculture and had a daughter with her. He loved and cared for Meg greatly. About six years after Meg's birth he was killed by Nero to ensure his daughter's loyalty to Triumvirate Holdings. His body was discovered on the steps of the New York Public Library in Midtown, with large gashes across his stomach.
Mr. McCaffrey is mentioned when Meg tells Apollo that he was killed by the Beast.
Mr. McCaffrey was a middle aged man with dark curly hair. He is also described as having a broad freckled nose and kind eyes.
Mr. McCaffrey was a kind man who cared for his family.