Credit: John Sciulli/

Actor Justin Mentell, a former star of ABC's Boston Legal, died in a car accident in rural Wisconsin on Monday. He was 27 years old.

The Associated Press confirms that Mentell, who is originally from Waukegan, Illinois, passed away when his Jeep swerved off a steep embankment and hit two trees at about 8:30 a.m. Mentell was not wearing a seatbelt.

The actor played lawyer Garrett Wells on Boston Legal from 2005 to 2006; more recently, he appeared in the 2009 film G-Force.

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Born in Austin, Tex., Mentell was reportedly a former member of the U.S. Junior National Speedskating team.