Gorgeous actress Garcelle Beauvais-Nilon is comparing her husband to Tiger Woods and Jesse James...She's accusing him of infidelity.

Beauvais-Nilon became so upset she fired off an angry email to her husband's colleagues.

The subject line was: "Tiger Woods/Jesse James/Mike Nilon."

The e-mail said: "What do they have in common...I found out today that MY husband of almost 9 yrs has been having an affair for 5 yrs with some slut in Chicago. I am devastated!!!! And I have been duped!! Our boys don't deserve this."

Beauvais-Nilon is best known for her roles in NYPD Blue and The Jamie Foxx Show. Her husband Mike Nilon is an agent at CAA and they have 2-year-old twin boys. The e-mail she sent has now gone viral.