Dennis Quaid is suing a man who reportedly owes him $70,000 (GBP35,000).
The actor filed a lawsuit in Los Angeles which alleges Steven Mendelson owes Quaid the money after he didn't pay back a loan in 2001.
Quaid claims Mendelson defaulted on the loan more than four years ago, reports website TMZ.com.
They tried to resolve the dispute amicably but failed, and Quaid is now suing for unspecified damages.