a presenter or speaker (someone who gives a talk at a conference or meeting).
今日の学会の演者は海外から招かれた研究者だ。
The speaker at today's conference is a researcher invited from abroad.
演者はスライドを使って30分間発表した。
The presenter gave a 30-minute presentation using slides.
パネルディスカッションでは各演者が順番に意見を述べた。
In the panel discussion, each speaker took turns expressing their views.
a performer or participant (on stage, TV, etc.); an actor, musician, or panelist—often synonymous with 'performer' or 'participant'.
今夜の番組の演者には有名なお笑い芸人が並んでいる。
Tonight's show features several famous comedians as performers.
ライブの演者は全員地元出身のバンドだ。
All the performers at the live show are local bands.
番組の演者紹介で司会者が一人ずつ名前を呼んだ。
During the introduction of performers, the host called each person's name.