handler

One who handles something (especially manually) or someone.

The handler of a weapon gets a symbolic sensation of deadly power.

Although the airline told them it took such action because they might spread the disease in their capacity as food handlers, neither was offered a transfer to other departments.

A controller, trainer, someone who handles a specified thing, animal or person (especially a prizefighter).

The spy's handler told him to approach the subject by posing as a dog handler.

They are also very sympathetic, especially Caesar’s orangutan advisor, Maurice (Karin Konoval), who takes a shine to a human moppet (Amiah Miller) he finds hiding in the back of a shack, and the poignant Bad Ape (a scene-stealing Steve Zahn), a mangy chimp who was beaten so often in his zoo-animal days that he came to believe what his handlers were shouting was supposed to be his name.

An advisor or manager providing guidance to a person occupying public office or a prominent position.

The governor received guidance on how to best disseminate key information to the public from her handler.

A subroutine that handles a particular situation such as an event or exception.

If the expression is a throw, we unwind the stack seeking a handler expression.

A surname.