Jake McNeil is a high ranking GDI officer stationed in the Norwegian Hammerfest base in Tiberian Sun.

Jake is the brother of Michael McNeil. He was taken prisoner along with his parents during the First Tiberium War and placed in a medical colony. His mother gave birth to his little brother Michael while in the camp. His brother's DNA was considered perfect for augmentation by Nod researchers, who took him away. When the McNeil's resisted, they were shot by security, leaving the McNeil brothers orphans. Jake never knew what the Brotherhood researchers were doing to his sibling, he only knew that his brother was still alive.

When the medical colony was liberated by GDI Commander James Solomon and his troops, both boys were placed in GDI care and grew up under the UN wing. However, Jake's deeply rooted distrustful attitude towards authority figures hampered any attempts by Solomon to develop a relationship similar to the one he had with McNeil.

Jake set aside his distrust and joined GDI after his brother rose in rank rapidly, seeing the pride with which he served. As a normal human (Michael was augmented by Nod in the medical colony, a fact no one in GDI knew about) he can't match his brother's accomplishments, a fact which gnaws at him a little, but he serves as best he can. He does his job well enough for no one to complain, although he often gets compared to standards higher than what he is capable of.

Jake is a loner who has problems fitting in with the crowd. He also has trust issues when it comes to authority figures and hidden anxieties concerning his brother's fame. Nevertheless, he is also idealistic and wants a world of peace, not war.