doer

plural doers

1. Someone who does, performs, or executes; an active person, an agent.

   a doer of good

   4 more examples

   By the wisdom proclaimed of old the doer must suffer.

   1924, Herbert Weir Smyth, “VIII. The Orestea: III. Eumenides”, in Aeschylean Tragedy, page 205

   The doer and the thinker No allowance for the other.

   1972, “Thick As A Brick”, Ian Anderson (lyrics), performed by Jethro Tull

   Though his name was closely linked to that of Physiocrats, he was less an armchair intellectual like Quesnay or the elder Mirabeau than a doer in the vein of Bertin and Trudaine [...].

   2002, Colin Jones, The Great Nation, Penguin, published 2003, page 295

   In schools, submission, not curiosity, was a highly valued virtue. Thinkers were out, doers were in.

   2008 March 25, Aleksandra Lojek-Magdziarz, The Guardian

   Synonyms: agent, dynamo, gunner, self-starter · Antonyms: doee, patient, idler, bum, couch potato, dawdler, deadbeat, dogfucker