So this is who is causing him so many problems!

Kevin Hart was forced to publicly apologize to pregnant wife Eniko Parrish and his two children after a tape surfaced that showed him in an comprising position with another woman, and now TMZ reports that woman is a Las Vegas stripper named Montia Sabbag.

The clip shows the comedian laying on her lap, then two people having sex and a naked man, who looks like Hart, getting dressed afterward.

The tape is now at the center of an FBI extortion probe, but Sabbag denies being the one who shot the footage or extorted the film star for financial gain. Her lawyer said Sabbag would take a lie detector test to prove her innocence... for $420K! Sounds fishy...

In case you missed it, check out Hart's public apology below!