"totally safe". Rolf later appears in the finale at Dwight's bachelor party alongside Mose and Gabor, showing his feud with Dwight was ultimately short-lived. Trevor Bortmen (Chris Gethard) is a friend of Dwight's. He works as a self-licensed and self-employed Private Investigator, and, like Dwight, is a former volunteer sheriff, having been fired from the force for reasons unknown. He makes his debut in "The Target", in which Angela hires him to kill Oscar after she finds out about his affair with her husband. While Trevor concedes that her request is "a little crazy", he agrees to the job. However, after Dwight objects to the murder, he convinces Angela to opt for a kneecapping instead. Trevor later arrives at the office, posing as a sandwich delivery man (with the lead pipe he placed in the sandwich being clearly visible), and pursues both Dwight and Oscar after the former rushes the latter out from the building. He manages to ambush the pair outside, but is hesitant once it is time to actually attack Oscar, giving the Accountant the opportunity to take away his weapon, causing Trevor to flee. He later reappears in "Junior Salesman", as one of Dwight's original applicants for the position of being Jim's part-time replacement, however, during his interview, he immediately effaces any confidence Dwight had in him that he would be suitable for the job. Melvina Whitaker (Beth Grant) is Dwight's former babysitter. She debuts in "Dinner Party", in which she acts like his date in order for the Salesman to attend the couples-only dinner held by Michael and Jan (though he maintains that their relationship is purely carnal). After the tension between the two hosts erupts, she decides she wants to leave, but Dwight refuses to give her a ride home; he later passes her by at a bus stop in a seedy-looking neighborhood while driving Michael to his farm. She reappears years later in the ninth season, applying to be a Junior Salesman at the office, but is ultimately passed on. Ira Glicksberg (Lance Krall) is Dwight's karate sensei, who referees a sparring match between Dwight and Michael, in season 2's "The Fight". He makes a reappearance in the ninth season, interviewing for the position of a junior Salesman, in the episode of the same name. According to his resume released by NBC.com, he was at one point in his life so obese that he