Driver was born in San Diego, California, and moved to the town of Mishawaka, Indiana, where he was raised, when he was five years old.[3] He attended Mishawaka High School, where he graduated in 2001. He appeared in several high school plays and was an accomplished singer in the school's choir.[2] 　　A few months after the events of 9/11, Driver joined the United States Marine Corps. He served for two and a half years, and two months before being deployed to Iraq, he injured his sternum in a biking accident, then further injured himself during a training exercise, and was medically discharged. After leaving the Marines, Driver attended the University of Indianapolis for a year before transferring to Juilliard to study drama. 　　Following his graduation from Juilliard in 2009, Driver began acting in New York City, appearing in both Broadway and off-Broadway productions.