Bones

Caroline Julian, played by Patricia Belcher, is the only guest star to appear in every season.

There have been several references to Agent Seeley Booth being a "direct descendant" of John Wilkes Booth. In reality, is is highly unlikely that John Wilkes Booth had any direct descendants. As the assassin of Abraham Lincoln and the first-ever assassin of any U. S. president, Booth's life history has been exhaustively scrutinized by generations of historical scholars, and there is absolutely no evidence that he ever married or fathered any children, legitimate or illegitimate. Several of John Wilkes Booth's brothers and sisters did have children, but in genealogical terms, to be a *direct* descendant of J. W. Booth, Seeley Booth would have to be descended from a child of his, and not just a niece or nephew.

Temperance Brennan is an anthropologist who writes about the character Kathy Reichs in her spare time. In real life, Kathy Reichs is an anthropologist who writes about the character Temperance Brennan.