David Kim filed a lawsuit Monday in Superior Court against Lohan, her Crossheart Productions and 50 unnamed defendants alleging the star employed him for 19 weeks then refused to pay him.
Calls to Lohan's publicist Leslie Sloane-Zelnik were not immediately returned.
In court papers, Kim claimed breach of oral contract and violation of four California labor codes, in addition to fraud and infliction of emotional distress.
The lawsuit claimed Kim was hired from October 2006 until March 2007 by Lohan, 21, and her agents or employees based on "various oral representations and text messages."
He claimed he is owed $4,000 a week for two weeks of 24-hour personal security, and $2,800 a week for 17 weeks of evening duty.
Kim said his duties included protecting Lohan from fans and the paparazzi, accompanying her to industry events and obtaining VIP tables at clubs and concerts.
Kim also claimed he arranged additional security at various concerts at his own expense.