Jesse James has apologised for the pain and embarrassment he has caused his wife Sandra Bullock and his three children.
James told People magazine: "It's because of my poor judgment that I deserve everything bad that is coming my way.
"This has caused my wife and kids pain and embarrassment beyond comprehension and I am extremely saddened to have brought this on them."
He added that "the vast majority of the allegations reported are untrue and unfounded," but offered no other details, saying: "Beyond that, I will not dignify these private matters with any further public comment."
Internet tabloid reports surfaced alleging that the 40-year-old motorcycle builder had been unfaithful to Sandra, whom he married in 2005.
Sandra subsequently cancelled a planned appearance in London for the premiere of The Blind Side, for which she won an Oscar, a Screen Actors Guild Award and a Golden Globe.
Representatives for the couple were not available for comment.
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