David McCallum – Net Worth: $10 million

For the recent generation, David McCallum is best known as NCIS medical examiner Dr. Donald Mallard. For the older generation, he was also secret agent Ilya Kuryakin in the TV series The Man from U.N.C.L.E. Either way, the actor has performed magnificently. He is now more than 80 years old, and that meant that David has to take things slow. In fact, he already made an agreement with CBS and left NCIS, with his protégé taking over as the show’s medical examiner. He has signed limited schedules with CBS since 2016.

Apart from his advanced age, why did he decide to leave the famed show? David posted on the social media platform Instagram that he wanted to spend more time with his family, which includes his wife Katherine, six grandsons, and of course, their children. Well, he deserves the retirement, but fans will dearly miss the actor. Given a choice, they would want his name to appear on the credits of NCIS once more.