Doggett was assigned by Deputy Director Alvin Kersh to head up the manhunt to find Special Agent Fox Mulder. The manhunt was unsuccessful and Doggett was demoted to work on the X-Files with Special Agent Dana Scully. During this time, Doggett and Kersh developed a bitter enmity, similar to the early relationship between Mulder and Walter Skinner. Initially, Scully and Doggett were not very trusting of each other. After years of investigating several X-Files cases with Mulder, Scully had slowly grown to believe in the existence of the paranormal. Doggett, however, is a no-nonsense agent, who frequently utilizes his down-to-earth sensibilities he learned as a Marine and a cop. Doggett therefore functioned as "the skeptic", while Scully somewhat served in Mulder's old position of "the believer". Gradually, Doggett and Scully came to trust one another to some degree, although he and Mulder, who later returned and recovered from his abduction, remained untrusting of each other for some time. Doggett and his new partner, Reyes, took charge of the X-Files after Mulder was fired from the FBI and Scully left active duty to teach at the FBI Academy and to care for her son, Baby William. In the series finale, Doggett testified on Mulder's behalf when Mulder was charged with murder. Later, he and Reyes narrowly escaped from Knowle Rohrer, who Doggett had discovered about a year prior was working for the conspiracy. At the end of the series, Doggett is likely a regular agent, as it appears that Kersh was forced to close down the X-Files division. Doggett does not appear, nor is he mentioned, in the 2008 X-Files feature film. He similarly does not appear or is mentioned in the 2016 television revival of The X-Files. Conceptual history More than one hundred actors auditioned for the role, but only ten were taken seriously by the producers. Known actors such as Lou Diamond Phillips and Hart Bochner were among the auditionees for the role as Agent Doggett. Both Phillips and Bochner were considered for the role, but the producers eventually chose Robert Patrick. Chris Carter said "I think it was something that we all talked about, but I wrote his voice. So, I think he was someone we all came up with together, but his voice came out of my head. But, it was something that was helped in a large degree by casting Robert Patrick." Patrick had an obligation