How would you describe Sir Julian Freke's character

A noted surgeon at St. Luke's Hospital, he is summoned to the Thipps' apartment to view the body in the tub and is then asked to account for all the cadavers currently on hand at the hospital to rule out some prank. Freke assures the police that all the cadavers are accounted for. Freke is brilliant and when it becomes evident that Peter has fingered Freke as the murderer of Rueben Levy, Freke admits defeat and writes a lengthy letter, outlining all his actions in the case. This letter in itself is a statement of Freke's ego. He seems certain that he would have gotten away with the scheme if Levy had not inadvertently been spotted near Freke's home and if the man working on Levy's disappearance had not learned from Peter's mother that Levy's wife and Freke had a romantic history.