Hallisay was born on Halloween Day in Washington, D.C., graduated from Gonzaga College High School in 1996 and then moved on to Cornell University, graduating in 2000. After college and before moving to Los Angeles, … See more

Hallisay made his television debut in 2005, appearing on Fox's The Inside, with Rachel Nichols and Adam Baldwin, as well as Lifetime's Strong Medicine, opposite Patricia Richardson.
On … See more

In March 2012, Hallisay began dating his The Client List co-star Jennifer Love Hewitt. In June 2013, it was announced that Hewitt and Hallisay were engaged and expecting their first child. They married November 20, 2013, befor… See more