manipulator

About 0.79 uses per million words.

Meaning

1. noun Agent noun of manipulate; one who manipulates.
2. noun A device which can be used to move, arrange or operate something.
3. noun A puppeteer, especially one controlling marionettes.

Similar words

operator handler handle reprogrammable user dof player manipulandum positioner machine

Often followed by

of is and with arm system to in control