David Boreanaz' daughter, Bella, and Emily Deschanel's son, Henry, can be seen in the childrens classroom scene with Booth & Brennan's daughter Christine, along side various writers & crew children too.
The little girl who says she wants to be a forensic anthropologist is David Boreanaz's daughter, Bella.
Emily Deschanel's son, Henry, is the little boy in the glasses who says "he has to think about it" when asked what he wants to be when he grows up.
In the Royal Diner scene with Booth & Brennan, some diners had their faces blurred out to reflect people asking for anonymity in real life documentaries
A phrase used often in the show is "comminuted fracture." A comminuted fracture is a break or splinter of the bone into more than two fragments. Another is "avulsion fracture." An avulsion fracture is an injury to the bone in a location where a tendon or ligament attaches to the bone. When an avulsion fracture occurs, the tendon or ligament pulls off a piece of the bone.