Dr. Clark Thomas Edison (Season 3–) is a recurring character who first appeared in the Season 3 premiere where he tried to become Dr. Brennan's assistant in Zack's absence. However, Zack returned in that very episode. Clark returned twice more; in Season 3, Episode 13, "The Verdict in the Story", working with the defense of Brennan's father, who was on trial for murder, Clark proved one of Zack's conclusions about the murder weapon wrong.
In Season 4, Episode 1, "Yanks in the UK", he made an appearance as the first of the group of six revolving assistants assigned to replace Zack. At the end of the episode, however, he reveals he cannot tolerate the informal attitudes of Dr. Brennan's team and quits. He does retain a recurring role throughout the series, still harboring some ill-feelings towards the informal behavior of his co-workers even as he recognizes the Jeffersonian's exceptional reputation.
In "The Girl in the Mask", Brennan compares Clark with Wendell and Vincent, saying Clark is the "most astute". Clark Edison is a vegan. While Angela was trying to remain celibate after breaking up with Roxie, she flirted very heavily with Clark, prompting him to introduce her to his girlfriend, Nora Oldhouse, a professor of women's studies and a fellow vegan (who describes Clark as "dynamite" in bed), to fend her off.
In the Season 4 alternate reality finale, Clark was re-imagined as a rap musician, "C–Synch", hoping to play at Booth and Brennan's night club, "The Lab". Booth refused to book him because his brother, a re-imagined Grayson Barasa, was a gang leader.
In season 5, the first hint of Clark's sentimental side shows when he expresses approval of Agent Booth's willingness to let his grandfather, Hank Booth, stay with him after his triple bypass surgery. Clark also mentions his own late grandfather, and reveals that his pursuing a career in forensic anthropology is in his grandfather's memory.
In the Season 6 premiere, which is a year after the Season 5 finale, it is revealed he left the Jeffersonian for a position in Chicago. He rejoined Dr. Brennan's team in the Season 6, Episode 2, "The Couple in the Cave", after learning of her return.
During Season 6, at the encouragement of his girlfriend, Clark has changed, from being unwilling to reveal personal information, to sharing many details of his life, but with little tact, much to the team's chagrin. In "The Couple in the Cave", he discovers that he is highly allergic to Lonicera sempervirens (Trumpet Honeysuckle), a species of honeysuckle. Clark continues to open-up in "The Body in the Bag", he reveals that he comes from a large family (nine brothers and sisters, and that he could never get a word in with them) and that his parents traveled away from home a lot (he speculates that he has abandonment issues because of this), all of which he attributes to his being so withdrawn and private. Clark has also expressed the desire to become a father and to start a large family.
In season 7, Clark appears in two episodes, "The Male in the Mail", where he gets awkward around Brennan and her pregnancy, and "The Warrior in the Wuss", where, concerning the impending first meeting between Parker and baby Christine, he brings up the fact that there are many myth about the dangers of step-children.
In the season 8 premiere, with Brennan on the run, Clark has been appointed to her position of Chief Forensic Anthropologist at the Jeffersonian. He is running a tighter ship than Brennan did, which Angela and Hodgins are resisting. Cam supports him and reminds the pair that all of them, including Clark, are working to clear Brennan's name so that she can return home. Once Brennan is cleared of the charges, he is relieved to return the position to her. Cam makes an announcement: The Jeffersonian needs two forensic anthropologists: one to solve crimes and one to do archaeological work, while Dr. Brennan returns to solving crimes, Clark takes up the new archaeological anthropology position.
He reappears in "The Archaeologist In The Cocoon", where he assumes custody of prehistoric human remains, and he and Brennan clash over who should be working with them.
In "The Shot in the Dark", after Brennan is shot in the Bone Room, Clarks steps in to continue where she left off while she's in the hospital; during this episode, in a conversation with Hodgins and Sweets, Clark reveals that his middle name is "Thomas", and they joke that essentially his name is "Thomas Edison".
Status: Alive Occupation: InternAffiliation: Jeffersonian Institute Title: Doctor (PhD.)
Physical Description Gender: Male Hair Colour: Black Eye Colour: Brown
Portrayed by:Eugene Byrd First Appearance: "The Widow's Son in the Windshield" Latest Appearance: "The Nazi on the Honeymoon"