as Top by his team, and the members of his team try to do what he would do in any given situation. However he is far from infallible and makes several mistakes during the course of the series. His sidearm of choice is a customized Colt .45 automatic but as an off-duty gun he uses a Smith & Wesson .380 pocket pistol. In tropical climates he wears a distinctive Australian slouch hat which he considers a lucky charm. He is a confidant of two different US Presidents who both use him for personal secret missions outside the normal chain of command. His hobbies seem to be collecting antique militaria and fishing. Outside of his teammates his best friend is Ron Cheals, a former member of the Unit who was crippled during a mission and forced into retirement. He is also a friend of Col. Ryan but this is stretched by Ryan's behavior in the later seasons. His radio call sign is Snake Doctor which is Southern US slang for a dragonfly (based on the myth that they follow snakes around and heal their injuries). Years of continual combat have left Jonas with numerous injuries including three pieces of shrapnel close to the spine that would enable him to retire on full disability benefits should he wish to do so. He refuses to retire however, or take up lucrative private security work, contrary to his wife's wishes. Jonas' personality is of a hard taskmaster. He effortlessly commands the respect of his men and is extremely patriotic, pushing himself hardest of all. However this self-centeredness sometimes alienates people outside the Unit in a detrimental manner. He is also very ruthless, never hesitating to kill in cold blood and nearly always putting the mission first. On three occasions he has tortured enemies for information by shooting them in the kneecap and slashing them in the face with a knife. In the course of the series Jonas kills at least 58 people. His medal ribbons include a Bronze Star and Purple Heart although these were presumably awarded before he joined the Unit, whose members do not seem to receive decorations for their heroism. He also wears the Kuwait Liberation Medal, meaning that he began his military career as early at the late 1980s. In the provisional storyline outlined by the writers for season 5, Jonas would begin an affair with fellow Unit member Bridget