Nathaniel Marston Nathaniel Marston

Nathaniel Marston, who played Michael McBain on One Life to Live for six years until he left the show in 2007, was critically injured in a car accident over the weekend and was on life support as of Saturday, according to a Facebook post from his mother.

"Please pray for my son Nathaniel Marston," Elizabeth Jackson wrote on her Facebook page Saturday. "He was in a car accident last night and is in the intensive care on life support. Back and neck broken in several places. Other internal injuries. Please pray that he will recover and walk again."

On Sunday, Jackson indicated that doctors had told her Marston's prognosis was not good. "If he lives he will be paralyzed from the neck down and will not breathe without a ventilator machine," she wrote.

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According to Jackson, Marston, 40, was not under the influence of alcohol at the time of the crash.

In addition to his role on One Life to Live, Marston also played Eddie Silva on As the World Turns from 1998 to 1999. He has also guest-starred on White Collar, Castle and Blue Bloods.