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.
Eric Millegan, who plays Dr. Zack Addy, a grad student younger than the other scientists, is actually one year older than T.J. Thyne (who plays Dr. Jack Hodgins), two years older than Emily Deschanel (who plays Dr. Temperance Brennan, his teacher), and four years older than Michaela Conlin (who plays Angela Montenegro).
Angela's father is played by ZZ Top member Billy Gibbons, and there have been several indications that the audience is supposed to understand that her father *is* Billy Gibbons (albeit a fictional version of Gibbons, since Angela is herself fictional). Although Angela's dad has never been given a name, before his first appearance Angela told her friends that her father is famous enough that they might recognize him immediately, and during Gibbons' appearances, there have been several references to the music of ZZ Top.
Bones works at the Jeffersonian Institute. There is no such place in Washington DC. However, the name is probably a play on the Smithsonian Institute. Shots of the outside of the actual Smithsonian are often used in the show also.
Almost every time Booth, played by David Boreanaz, is in front of the camera he has on him a watch, his FBI ID, a holstered sidearm, a Zippo lighter, Craps dice, a $100 poker chip, a floaty pen (the type where a girl's clothes fall off when you turn it upside down), 3"x5" index cards, his light brown sunglasses; and he is wearing a St. Christopher medal. All of these items can be spotted being handled by Booth throughout the series.
The Royal Diner, where Brennan and Booth (and occasionally the other characters) go to relax after work really exists in Washington - but the one in New Jersey (on Route 31 North), not the District of Columbia.
Originally, the weight they'd give the victim who was exactly like Brennan on "The Doctor in the Photo" would be 20lbs less than the weight that aired. Emily Deschanel had read the script and called the producers, asking them to put the weight closer to the reality.
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.
Up to season 3, Special Agent Seeley Booth has handled a Glock 17, a Magnum .357, a two-tone S&W Sigma (commonly misidentified as a Glock, both pistols look and function nearly identical, however Glock does not produce two-toned pistols), and a Tokyo Marui Hi-Capa 5.1 (Airsoft replica) with a tactical flashlight attachment, along with a Colt .22 back up weapon. While Doctor Temperance Brennan has handled a Colt .22 in 'The Pilot' where she shot a suspect as well as on several occasions to back Agent Booth, a very large Smith and Wesson M500 .50 Revolver in season 2, and Booth's Tokyo Marui Hi-Capa 5.1 Airsoft Replica when she shot Booth's stalker.
David Boreanaz and T.J. Thyne have worked together before. T.J. played a Wolfram & Hart lawyer on the season 5 premiere of David's previous show "Angel" (1999, Joss Whedon). Angel ended the year before Bones premiered.
The trivia items below may give away important plot points.
Angela Montenegro's middle name is thought to be "Pearly Gates" which is the name of a guitar belonging to ZZ Top member Billy Gibbons, who plays Angela's father in some episodes. However, when she marries Hodgins (S5 E21) it is revealed that her legal name is not the name she has been using. She whispers it in to the ear of the judge marrying them but he does not repeat her name.
John Francis Daley needed four months off to direct "National Lampoons Vacation." Since there was no good way to give his character the time off the first episode of season 10 has Sweets being killed off from internal bleeding after an altercation.
Every child born to a main character on the show is named after a close friend or family member who has died as a way to honor their memory. Booth's oldest child (from a previous relationship), Parker, is named after Teddy Parker, a fellow sniper and close friend who died in Booth's arms in combat. Angela and Hodgins' son, Michael Vincent, is named after squintern Vincent Nigel-Murray who was murdered shortly before Angela gave birth. Booth and Brennan's first child, Christine, is named after Brennan's mother, who was also murdered. Sweets and Daisy's child, Seeley Lance Wicks-Sweets is named after Booth and (Lance) Sweets, who was murdered before his child was born. And Booth and Brennan's second child is named Hank after Booth's deceased grandfather, who raised him after finding out that Booth and his brother were being physically abused by their father (Hank's son).
The establishing shot of Seely Booth's apartment (which his Grandfather almost burns down) shows him living in an apartment above a liquor store called Sportsmans. This is a real apartment and liquor store in DC on Mt Pleasant Street.
Agent Booth has come in to contact with three people named Pelant. First in s5ep22 The Beginning in the End the recruiter who came to ask booth to come back to the army was named Pelant. Then, of course, Christopher Pelant, the crazed serial killer in love with Brennan. And lastly the actress playing Christine Booth in season 10 is named S. Pelant.