'Kyle XY' Star in Clone Suit

As if the cancellation of "Kyle XY" wasn't enough ... Matt Dallas' manager is now suing the actor over the scratch he made while playing a belly buttonless clone.

Enzo Lamblet filed the lawsuit in L.A. County Superior Court, claiming he was supposed to get a 10% cut of Dallas' "XY" paycheck for providing the actor with management services.

Lamblet claims Dallas made $582,986.75 for the lead role, but only paid him $24,255.