Noun
One who does; one performs or executes; one who is wont and ready to act; an actor; an agent.
An agent or attorney; a factor.
Source: Webster's dictionaryhe's a principal actor in this affair Source: Internet
when you want something done get a doer Source: Internet
he's a miracle worker Source: Internet
All this is another way of saying what Socrates believed long ago: That evil, which is also a profound state of unhappiness whether the doer knows it or not, is done through ignorance. Source: Internet
In Bhagavad Gita when Arjuna hesitates to kill his kith and kin the lord reprimands him saying thus "Do you believe that you are the doer of the action. Source: Internet
I also wonder if you might be making unfair comparisons in regard to ages, work opportunities in the field, etc, when you determine who is a “doer.” Source: Internet