Wolk was born in Farmington Hills, Michigan, the son of Edie, an art teacher, and Robert Wolk, a shoe store owner.His family is Jewish.During his teenage years, Wolk worked as an emcee at Bar and Bat Mitzvahs.

He graduated from North Farmington High School in 2003, and from the University of Michigan School of Music, Theatre and Dance in 2007.

In 2008, Wolk landed his first television role in Hallmark Hall of Fame's Front of the Class, as Brad Cohen. He subsequently played the title character in the 2009 ABC pilot Solving Charlie. In 2010, Wolk was cast as the lead in the Fox television series Lone Star, as Robert/Bob Allen, a Texas con man married to the daughter of one of his targets, while simultaneously maintaining a relationship in another town. The show was canceled by Fox after only two episodes.

Wolk played a presidential speechwriter named Andrew Pierce in Georgetown, a 2011 ABC pilot which did not go to air.

In Fall 2011, Wolk joined the second season cast of the Showtime dramedy Shameless, with the recurring role of Adam. The second season premiered January 8, 2012.

Wolk played the recurring role of Grant in three episodes of the ABC comedy Happy Endings, beginning with the first installment on February 8, 2012.

Wolk is on the Board of Directors of the Brad Cohen Tourette Foundation. He also volunteers at "Camp Twitch and Shout", which is a camp for children (ages 7–17) with Tourette syndrome in Georgia.

Most recently, Wolk was cast as Jackson Oz in CBS' new drama/thriller series, "Zoo." The series is based on James Patterson's novel, "Zoo." It is about a Jackson Oz, a young scientist, as he searches to find out what's causing a rash of violent animal attacks.

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