LOS ANGELES - Actor Lane Garrison, who played an inmate on the TV drama "Prison Break," pleaded guilty on Monday to vehicular manslaughter and drunken driving for a car crash in December that killed a 17-year-old student.

Lane Garrison leaves the Beverly Hills Superior Court in Beverly Hills, March 8, 2007. [Reuters]

Garrison, 26, was driving a Land Rover that crashed into a tree in Beverly Hills injuring two 15-year-old girl passengers and killing 17-year-old passenger Vahagn Setian. He had met the teens at a store and was on his way to a party with them when the accident occurred.

Prosecutors said Garrison had a blood alcohol level nearly twice California's legal limit and was also under the influence of cocaine. He also pleaded guilty to providing alcohol to a minor.

Garrison faces a maximum sentence of 6 years, 8 months in prison when he returns to court for sentencing on August 2.

His lawyer told reporters earlier this month that Garrison would accept responsibility for his conduct.

Garrison's "Prison Break" character David "Tweener" Apolskis was killed off the Fox TV drama earlier this season. The Dallas native's other credits include the 2006 film "Crazy" and this year's" Shooter".