The charges hold a maximum sentence of 23 years and four months in prison.
Roberts' attorney, John Barnett, denied to give his client's response to the charges against him, but did comment on why he thought the two women would make the accusations.
"I will not discuss my client's feelings, but the evidence suggests the two complaining witnesses are motivated by money and rejection," Barnett said in an e-mail.
Roberts is accused of physically abusing his wife from June 2007 to May 2008 in the family home they shared in Huntington Beach, according to court documents.
He allegedly raped his wife in their son's bedroom while the son was away, according to the wife's testimony during an interview by the Sheriff's Department, which is part of the court record.
The attack allegedly left the wife with a black eye, and Roberts is accused of not letting her leave the house with the injury visible, according to the testimony.
He is also accused of raping her after they divorced and telling her he would lose his job if she reported him.
In addition, he allegedly threatened to "blow out her brains," according to the testimony.
The two bought a house in Huntington Beach together in 2002, married a year later and divorced in November 2008, according to court records. They have one child.
Roberts also allegedly began seeing a second woman in 2006 until March 2008, according to testimony she gave during an interview with the sheriff's department in court records.
Roberts is accused of three counts of false imprisonment by violence or deceit, aggravated assault, forcible sodomy and rape against the alleged mistress.
Also, Roberts is accused of threatening a male friend of his wife's.