der Akteur
Translation
player, actor, stakeholder, protagonist
Examples
Er ist ein wichtiger Akteur in der Politik.
He is an important player in politics.
Die Akteure betraten die Bühne.
The actors entered the stage.
Grammar Patterns
to be an important player ((in sth.)) He is an important player in politics.
Similar Words
Handelnder (one who acts), Spieler (player), Teilnehmer (participant)
Etymology
From Latin 'actor' (doer, performer), cognate with the English word 'actor'.
Memory Tips
It's very similar to 'actor'. Just expand its meaning to include 'players' or key figures in any field, like politics or economics.