In Season 8 of NCIS, Sean Murray, who portrays Timothy McGee, underwent a noticeable weight loss. Contrary to speculation, it was a personal choice by Murray and not a character development strategy. Murray addressed his weight loss on Twitter, revealing that he followed a strict diet involving 14 months of no alcohol and minimal sugar, along with a focus on organic eating. The change in appearance, a loss of 25 pounds, was well-received by viewers. While the show didn’t directly address the transformation, it mirrored McGee’s character growth on the show as he evolved into a more confident and respected senior special agent.