After quitting her previous show, Rescue Me, Farr immediately received an offer for a role on Numb3rs. Farr was to make guest appearances before becoming a regular. Since she was cast as Megan, Farr's character on Rescue Me had to be written out. To prepare for _her_ role, Farr needed someone to coach her on the math and science used on the show. <sep>, Pronoun: her