Law enforcement sources tell TMZ cops were alerted on Sunday when a seemingly intoxicated Buddy -- covered in scratches -- was seen taking off in his car after grabbing beer at an Austin gas station.
After being stopped, an allegedly semi-conscious Buddy was evaluated at a nearby hospital and arrested for DWI.
Buddy's also being investigated for possessing dangerous drugs. Cops say they found prescription medications in his car on January 4th.
He's still in jail for the DWI.
Buddy played Cole Thornhart on OLTL from 2006-2010.