Psychotic and a bit "loonie" by human standards, even his sense of humor is considered warped by Dralasites (but enough to keep a human audience rolling). After washing out of the Scispec school at Groth, Jak Rapier ended up on the wrong side of the law. Often donning face paint and a wig as a "disguise" in his short term career as a petty criminal, he quickly gained noteriety in the ranks of Outer Reach's vast criminal society. It should be noted that "Jokhi" is the native Dralasite word for "clown".

He soon got in with MalCo Enterprises, working for one of the Malthar's underbosses, a dralasite known in the underworld as Kal Krissom. He became Kal's right hand man until the outbreak of the Thrid Dramune War, when he was assigned to remove some incriminating files from MalCo's Axis Chemical Plant. When he and his wrecking crew arrived, the files were already gone. Suspecting foul play, he ordered his crew to evacuate, but it was too late: UPF LandFleet forces had already entered the building.

After a lengthy battle, Jak managed to escape, but not unscathed. He fell into a vat of toxic chemicals, a lethal mixture that should have killed him. Instead it fused his clown wig disguise to his elastic flesh and permanently discolored his skin to a pale white hue. He now suffers from multiple personality disorders, which only makes him that much deadlier. Once his mind is set in motion, the carry through is usually quite devastating.