Turn the following verbs into nouns denoting the doer of the action.
To support;
to vote;
to manufacture;
to own;
to oppose;
to believe;
to elect;
to win;
to defend;
to direct;
to represent;
to preside.

supporter voter manufacturer owner oppositionist (или opposer) believer elector winner defender director representative president

to support - supporterto vote - voterto manufacture - manufacturer to own - ownerto oppose - oppositionistto believe - believerto elect - electorto win - winnerto defend - defenderto direct - directorto represent - representative to preside - president