Authorities say Locane-Bovenizer's Chevrolet Tahoe hit a Mercury Milan driven by Fred Seeman of Montgomery as he was turning into his driveway June 27. Seeman's wife, Helene, was killed.
Officers arrested Locane-Bovenizer after detecting alcohol on her breath.
She has been freed on $50,00 bail. Her lawyer did not return an after-hours message seeking comment.
Locane-Bovenizer played Sandy Louise Harling on the first season of "Melrose Place" in 1992.