Dr. Carl Travis Vey was the father of Michael Vey and the wife of Sharon Vey. Formerly a medical advisor to Elgen Inc., he is the secret leader of the resistance against Dr. Hatch. Despite this, he was presumed dead by his family, and operated behind his agent Dr. Coonradt, who poses as a supervisor to the resistance.
Sometime before he joined the MEI project, Carl Vey met a woman named Sharon. After he fell in love with her, he got a job as research manager at the Pasadena General Hospital, which at the time was in a contract with a medical equipment company named Elgen Incorporated. He worked with a man named Dr. Hatch, who became his friend. When he and Sharon were married, they had a baby boy they named Michael. Over the course of eight years, Carl would be promoted to head of radiology before his death.
During this time, Vey, Hatch, a man named Dr. Coonradt, and his assistant, Anna Ferguson, designed a Magnetic Electron Inductor machine they called the MEI. When Michael and at least fifty eight other babies were tested in the machine, only 17, including Michael, had survived. Hatch was ordered to find the other children who survived, to see if they started dying as well. As Hatch tried desperately to find Michael, Carl Vey faked his death and fled, as he knew how bad the Elgen Corporation was becoming. After Dr. Coonradt faked his own death, he and Coonradt, known as the Voice, formed the Elgen Resistance, appointing Simon Kay (one of their colleagues) as chairman of the organization. Coonradt and Vey also hired Joel Ferguson, Anna's brother, as a resistance fighter.
By the events of the first Michael Vey book, Vey found Cassy, a Glow born from the MEI, and sent her to live with The Voice.
in The Final Spark, it's revealed that Carl Vey is alive and the head of the Resistance, much to Hatch and Sharon's shock. Hatch calls him and orders him to show himself to the Electroclan, Michael's group. He tries to coax them into throwing bricks at him, blaming him for this war. However, they rebel against Hatch and throw bricks at him. Michael arrives and kills Hatch by vaporizing him.
At the end of the book, Carl becomes chairman of the Elgen Corporation, and hires Welch, one of Hatch's former guards who defected, as CEO.