In Season 8 of NCIS, Sean Murray, who plays Timothy McGee, underwent a noticeable weight loss. This change was a personal choice by Murray, not a character development strategy.
On Twitter, Murray revealed that his weight loss was achieved through a strict diet, including 14 months without alcohol and minimal sugar, combined with a focus on organic eating. He lost 25 pounds, and viewers responded positively to his new appearance. Although the show did not directly address the transformation, it paralleled McGee’s character growth as he became a more confident and respected senior special agent.