At the beginning of his career, Gavin wrote and produced an American short movie The Bet, which was directed by Ted Demme. Subsequently, he co-wrote and directed American independent movie Comfortably Numb.
Gavin made his breakthrough by directing an American sports docudrama movie Miracle. The stars of this movies are Kurt Russell, Patricia Clarkson, and Noah Emmerich. The total budget for this movie was $28 million and grossed $64.5 million at the office.
In 2016, Gavin directed another hit crime thriller movie The Accountant. The cast members of this movie are Ben Affleck, Anna Kendrick, J. K. Simmons, and Jon Bernthal. The movie became a huge hit and made a collection of $155.2 million at the box office against the budget of $44 million.
Moreover, Gavin has also directed, produced, and written numerous movies and television series like Tumbleweeds, The Glass House, The Smashing Machine, Thirteen, Elvis and Anabelle, Pride and Glory, Warrior, Jane Got a Gun and Seven Seconds.
Regarding his ethnicity and nationality, Gavin is a white American. He has been married twice in his life. He first married his girlfriend Angela Shelton in 1995. However, the couple couldn't continue their married life for a long time, and they got divorced in 1996.
Later on June 22, 2013, Gavin married actress and model Brooke Burns. The couple is blessed with a daughter named Declan Welles. She was born on January 22, 2017. Currently, he lives a happily married life with his wife Brooke and children in Los Angeles.
Most of Gavin income comes from his directing and producing career. He has directed and produced a number of movies from which he must have collected a decent amount of salary. As of 2018, his net worth is estimated to be $1.1 Million.